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Finding the Fourth Proportional to 8,338.04, 12,475.22 and 7,290.30

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Solution

The fourth proportional to 8,338.04, 12,475.22 and 7,290.30 is: 10,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.04 : 12,475.22 = 7,290.30 : x
  2. Step 2: Convert to fraction form
    8,338.04/12,475.22 = 7,290.30/x
  3. Step 3: Cross multiply
    8,338.04x = 12,475.22 × 7,290.30
  4. Step 4: Simplify right side
    8,338.04x = 90,948,106.70
  5. Step 5: Solve for x
    x = 90,948,106.70/8,338.04
  6. Step 6: Final answer
    x = 10,907.61

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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.