Home / 7,947.32-11,920.98-2,753.18

Finding the Fourth Proportional to 7,947.32, 11,920.98 and 2,753.18

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Solution

The fourth proportional to 7,947.32, 11,920.98 and 2,753.18 is: 4,129.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.32 : 11,920.98 = 2,753.18 : x
  2. Step 2: Convert to fraction form
    7,947.32/11,920.98 = 2,753.18/x
  3. Step 3: Cross multiply
    7,947.32x = 11,920.98 × 2,753.18
  4. Step 4: Simplify right side
    7,947.32x = 32,820,603.72
  5. Step 5: Solve for x
    x = 32,820,603.72/7,947.32
  6. Step 6: Final answer
    x = 4,129.77

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Similar ratio
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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.