Home / 7,456.87-11,188.95-5,279.59

Finding the Fourth Proportional to 7,456.87, 11,188.95 and 5,279.59

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Solution

The fourth proportional to 7,456.87, 11,188.95 and 5,279.59 is: 7,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.87 : 11,188.95 = 5,279.59 : x
  2. Step 2: Convert to fraction form
    7,456.87/11,188.95 = 5,279.59/x
  3. Step 3: Cross multiply
    7,456.87x = 11,188.95 × 5,279.59
  4. Step 4: Simplify right side
    7,456.87x = 59,073,068.53
  5. Step 5: Solve for x
    x = 59,073,068.53/7,456.87
  6. Step 6: Final answer
    x = 7,921.97

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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.