Home / 15,577.24-23,358.30-7,781.80

Finding the Fourth Proportional to 15,577.24, 23,358.30 and 7,781.80

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Solution

The fourth proportional to 15,577.24, 23,358.30 and 7,781.80 is: 11,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.24 : 23,358.30 = 7,781.80 : x
  2. Step 2: Convert to fraction form
    15,577.24/23,358.30 = 7,781.80/x
  3. Step 3: Cross multiply
    15,577.24x = 23,358.30 × 7,781.80
  4. Step 4: Simplify right side
    15,577.24x = 181,769,618.94
  5. Step 5: Solve for x
    x = 181,769,618.94/15,577.24
  6. Step 6: Final answer
    x = 11,668.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.