Home / 15,350.97-21,177.44-9,381.52

Finding the Fourth Proportional to 15,350.97, 21,177.44 and 9,381.52

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Solution

The fourth proportional to 15,350.97, 21,177.44 and 9,381.52 is: 12,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.97 : 21,177.44 = 9,381.52 : x
  2. Step 2: Convert to fraction form
    15,350.97/21,177.44 = 9,381.52/x
  3. Step 3: Cross multiply
    15,350.97x = 21,177.44 × 9,381.52
  4. Step 4: Simplify right side
    15,350.97x = 198,676,547.42
  5. Step 5: Solve for x
    x = 198,676,547.42/15,350.97
  6. Step 6: Final answer
    x = 12,942.28

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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.