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Finding the Fourth Proportional to 15,765.52, 23,648.28 and 5,377

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Solution

The fourth proportional to 15,765.52, 23,648.28 and 5,377 is: 8,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.52 : 23,648.28 = 5,377 : x
  2. Step 2: Convert to fraction form
    15,765.52/23,648.28 = 5,377/x
  3. Step 3: Cross multiply
    15,765.52x = 23,648.28 × 5,377
  4. Step 4: Simplify right side
    15,765.52x = 127,156,801.56
  5. Step 5: Solve for x
    x = 127,156,801.56/15,765.52
  6. Step 6: Final answer
    x = 8,065.50

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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.