Home / 15,648.72-23,456.67-5,781.70

Finding the Fourth Proportional to 15,648.72, 23,456.67 and 5,781.70

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Solution

The fourth proportional to 15,648.72, 23,456.67 and 5,781.70 is: 8,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.72 : 23,456.67 = 5,781.70 : x
  2. Step 2: Convert to fraction form
    15,648.72/23,456.67 = 5,781.70/x
  3. Step 3: Cross multiply
    15,648.72x = 23,456.67 × 5,781.70
  4. Step 4: Simplify right side
    15,648.72x = 135,619,428.94
  5. Step 5: Solve for x
    x = 135,619,428.94/15,648.72
  6. Step 6: Final answer
    x = 8,666.49

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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.