Home / 13,081.24-18,058.80-10,090.36

Finding the Fourth Proportional to 13,081.24, 18,058.80 and 10,090.36

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Solution

The fourth proportional to 13,081.24, 18,058.80 and 10,090.36 is: 13,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.24 : 18,058.80 = 10,090.36 : x
  2. Step 2: Convert to fraction form
    13,081.24/18,058.80 = 10,090.36/x
  3. Step 3: Cross multiply
    13,081.24x = 18,058.80 × 10,090.36
  4. Step 4: Simplify right side
    13,081.24x = 182,219,793.17
  5. Step 5: Solve for x
    x = 182,219,793.17/13,081.24
  6. Step 6: Final answer
    x = 13,929.86

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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.