Home / 9,864.11-13,612.29-5,387.92

Finding the Fourth Proportional to 9,864.11, 13,612.29 and 5,387.92

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Solution

The fourth proportional to 9,864.11, 13,612.29 and 5,387.92 is: 7,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.11 : 13,612.29 = 5,387.92 : x
  2. Step 2: Convert to fraction form
    9,864.11/13,612.29 = 5,387.92/x
  3. Step 3: Cross multiply
    9,864.11x = 13,612.29 × 5,387.92
  4. Step 4: Simplify right side
    9,864.11x = 73,341,929.54
  5. Step 5: Solve for x
    x = 73,341,929.54/9,864.11
  6. Step 6: Final answer
    x = 7,435.23

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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.