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Finding the Fourth Proportional to 8,220.58, 12,332.31 and 2,672.94

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Solution

The fourth proportional to 8,220.58, 12,332.31 and 2,672.94 is: 4,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.58 : 12,332.31 = 2,672.94 : x
  2. Step 2: Convert to fraction form
    8,220.58/12,332.31 = 2,672.94/x
  3. Step 3: Cross multiply
    8,220.58x = 12,332.31 × 2,672.94
  4. Step 4: Simplify right side
    8,220.58x = 32,963,545.02
  5. Step 5: Solve for x
    x = 32,963,545.02/8,220.58
  6. Step 6: Final answer
    x = 4,009.88

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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.