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Finding the Fourth Proportional to 8,605.47, 12,887.41 and 4,896.46

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Solution

The fourth proportional to 8,605.47, 12,887.41 and 4,896.46 is: 7,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.47 : 12,887.41 = 4,896.46 : x
  2. Step 2: Convert to fraction form
    8,605.47/12,887.41 = 4,896.46/x
  3. Step 3: Cross multiply
    8,605.47x = 12,887.41 × 4,896.46
  4. Step 4: Simplify right side
    8,605.47x = 63,102,691.44
  5. Step 5: Solve for x
    x = 63,102,691.44/8,605.47
  6. Step 6: Final answer
    x = 7,332.86

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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.