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Finding the Fourth Proportional to 6,753.71, 10,128.85 and 4,644.90

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Solution

The fourth proportional to 6,753.71, 10,128.85 and 4,644.90 is: 6,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,753.71 : 10,128.85 = 4,644.90 : x
  2. Step 2: Convert to fraction form
    6,753.71/10,128.85 = 4,644.90/x
  3. Step 3: Cross multiply
    6,753.71x = 10,128.85 × 4,644.90
  4. Step 4: Simplify right side
    6,753.71x = 47,047,483.75
  5. Step 5: Solve for x
    x = 47,047,483.75/6,753.71
  6. Step 6: Final answer
    x = 6,966.17

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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.