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Finding the Fourth Proportional to 8,887.32, 12,223.98 and 7,282.44

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Solution

The fourth proportional to 8,887.32, 12,223.98 and 7,282.44 is: 10,016.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.32 : 12,223.98 = 7,282.44 : x
  2. Step 2: Convert to fraction form
    8,887.32/12,223.98 = 7,282.44/x
  3. Step 3: Cross multiply
    8,887.32x = 12,223.98 × 7,282.44
  4. Step 4: Simplify right side
    8,887.32x = 89,020,400.91
  5. Step 5: Solve for x
    x = 89,020,400.91/8,887.32
  6. Step 6: Final answer
    x = 10,016.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.