Home / 16,939.28-23,376.16-9,487.28

Finding the Fourth Proportional to 16,939.28, 23,376.16 and 9,487.28

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Solution

The fourth proportional to 16,939.28, 23,376.16 and 9,487.28 is: 13,092.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.28 : 23,376.16 = 9,487.28 : x
  2. Step 2: Convert to fraction form
    16,939.28/23,376.16 = 9,487.28/x
  3. Step 3: Cross multiply
    16,939.28x = 23,376.16 × 9,487.28
  4. Step 4: Simplify right side
    16,939.28x = 221,776,175.24
  5. Step 5: Solve for x
    x = 221,776,175.24/16,939.28
  6. Step 6: Final answer
    x = 13,092.42

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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.