Home / 15,377.17-21,231.87-9,416.97

Finding the Fourth Proportional to 15,377.17, 21,231.87 and 9,416.97

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Solution

The fourth proportional to 15,377.17, 21,231.87 and 9,416.97 is: 13,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.17 : 21,231.87 = 9,416.97 : x
  2. Step 2: Convert to fraction form
    15,377.17/21,231.87 = 9,416.97/x
  3. Step 3: Cross multiply
    15,377.17x = 21,231.87 × 9,416.97
  4. Step 4: Simplify right side
    15,377.17x = 199,939,882.83
  5. Step 5: Solve for x
    x = 199,939,882.83/15,377.17
  6. Step 6: Final answer
    x = 13,002.38

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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.