Home / 18,365.88-25,340.58-13,058.76

Finding the Fourth Proportional to 18,365.88, 25,340.58 and 13,058.76

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Solution

The fourth proportional to 18,365.88, 25,340.58 and 13,058.76 is: 18,018.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.88 : 25,340.58 = 13,058.76 : x
  2. Step 2: Convert to fraction form
    18,365.88/25,340.58 = 13,058.76/x
  3. Step 3: Cross multiply
    18,365.88x = 25,340.58 × 13,058.76
  4. Step 4: Simplify right side
    18,365.88x = 330,916,552.48
  5. Step 5: Solve for x
    x = 330,916,552.48/18,365.88
  6. Step 6: Final answer
    x = 18,018.01

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Half scale
Find fourth proportional to 36,731.76, 50,681.16 and 26,117.52
Double scale
Find fourth proportional to 18,366.88, 25,341.96 and 13,059.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.