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Finding the Fourth Proportional to 8,656.71, 12,997.07 and 4,442.95

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Solution

The fourth proportional to 8,656.71, 12,997.07 and 4,442.95 is: 6,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.71 : 12,997.07 = 4,442.95 : x
  2. Step 2: Convert to fraction form
    8,656.71/12,997.07 = 4,442.95/x
  3. Step 3: Cross multiply
    8,656.71x = 12,997.07 × 4,442.95
  4. Step 4: Simplify right side
    8,656.71x = 57,745,332.16
  5. Step 5: Solve for x
    x = 57,745,332.16/8,656.71
  6. Step 6: Final answer
    x = 6,670.59

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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.