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Finding the Fourth Proportional to 8,499.04, 12,722.29 and 8,374.49

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Solution

The fourth proportional to 8,499.04, 12,722.29 and 8,374.49 is: 12,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.04 : 12,722.29 = 8,374.49 : x
  2. Step 2: Convert to fraction form
    8,499.04/12,722.29 = 8,374.49/x
  3. Step 3: Cross multiply
    8,499.04x = 12,722.29 × 8,374.49
  4. Step 4: Simplify right side
    8,499.04x = 106,542,700.65
  5. Step 5: Solve for x
    x = 106,542,700.65/8,499.04
  6. Step 6: Final answer
    x = 12,535.85

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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.