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Finding the Fourth Proportional to 6,360.32, 9,520.40 and 5,691.63

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Solution

The fourth proportional to 6,360.32, 9,520.40 and 5,691.63 is: 8,519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,360.32 : 9,520.40 = 5,691.63 : x
  2. Step 2: Convert to fraction form
    6,360.32/9,520.40 = 5,691.63/x
  3. Step 3: Cross multiply
    6,360.32x = 9,520.40 × 5,691.63
  4. Step 4: Simplify right side
    6,360.32x = 54,186,644.18
  5. Step 5: Solve for x
    x = 54,186,644.18/6,360.32
  6. Step 6: Final answer
    x = 8,519.48

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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.