Home / 13,309.47-18,368.10-7,341.66

Finding the Fourth Proportional to 13,309.47, 18,368.10 and 7,341.66

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Solution

The fourth proportional to 13,309.47, 18,368.10 and 7,341.66 is: 10,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.47 : 18,368.10 = 7,341.66 : x
  2. Step 2: Convert to fraction form
    13,309.47/18,368.10 = 7,341.66/x
  3. Step 3: Cross multiply
    13,309.47x = 18,368.10 × 7,341.66
  4. Step 4: Simplify right side
    13,309.47x = 134,852,345.05
  5. Step 5: Solve for x
    x = 134,852,345.05/13,309.47
  6. Step 6: Final answer
    x = 10,132.06

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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.