Home / 8,437.05-12,663.32-4,279.95

Finding the Fourth Proportional to 8,437.05, 12,663.32 and 4,279.95

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Solution

The fourth proportional to 8,437.05, 12,663.32 and 4,279.95 is: 6,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.05 : 12,663.32 = 4,279.95 : x
  2. Step 2: Convert to fraction form
    8,437.05/12,663.32 = 4,279.95/x
  3. Step 3: Cross multiply
    8,437.05x = 12,663.32 × 4,279.95
  4. Step 4: Simplify right side
    8,437.05x = 54,198,355.03
  5. Step 5: Solve for x
    x = 54,198,355.03/8,437.05
  6. Step 6: Final answer
    x = 6,423.85

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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.