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Finding the Fourth Proportional to 8,192.70, 12,285.68 and 2,925.68

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Solution

The fourth proportional to 8,192.70, 12,285.68 and 2,925.68 is: 4,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.70 : 12,285.68 = 2,925.68 : x
  2. Step 2: Convert to fraction form
    8,192.70/12,285.68 = 2,925.68/x
  3. Step 3: Cross multiply
    8,192.70x = 12,285.68 × 2,925.68
  4. Step 4: Simplify right side
    8,192.70x = 35,943,892.21
  5. Step 5: Solve for x
    x = 35,943,892.21/8,192.70
  6. Step 6: Final answer
    x = 4,387.31

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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.