Home / 15,781.27-23,663.80-5,247.49

Finding the Fourth Proportional to 15,781.27, 23,663.80 and 5,247.49

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Solution

The fourth proportional to 15,781.27, 23,663.80 and 5,247.49 is: 7,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.27 : 23,663.80 = 5,247.49 : x
  2. Step 2: Convert to fraction form
    15,781.27/23,663.80 = 5,247.49/x
  3. Step 3: Cross multiply
    15,781.27x = 23,663.80 × 5,247.49
  4. Step 4: Simplify right side
    15,781.27x = 124,175,553.86
  5. Step 5: Solve for x
    x = 124,175,553.86/15,781.27
  6. Step 6: Final answer
    x = 7,868.54

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1.5x scale

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.