Home / 15,400.91-21,256.55-9,732.05

Finding the Fourth Proportional to 15,400.91, 21,256.55 and 9,732.05

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Solution

The fourth proportional to 15,400.91, 21,256.55 and 9,732.05 is: 13,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.91 : 21,256.55 = 9,732.05 : x
  2. Step 2: Convert to fraction form
    15,400.91/21,256.55 = 9,732.05/x
  3. Step 3: Cross multiply
    15,400.91x = 21,256.55 × 9,732.05
  4. Step 4: Simplify right side
    15,400.91x = 206,869,807.43
  5. Step 5: Solve for x
    x = 206,869,807.43/15,400.91
  6. Step 6: Final answer
    x = 13,432.31

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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.