Home / 8,376.40-11,560.56-4,839.76

Finding the Fourth Proportional to 8,376.40, 11,560.56 and 4,839.76

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Solution

The fourth proportional to 8,376.40, 11,560.56 and 4,839.76 is: 6,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.40 : 11,560.56 = 4,839.76 : x
  2. Step 2: Convert to fraction form
    8,376.40/11,560.56 = 4,839.76/x
  3. Step 3: Cross multiply
    8,376.40x = 11,560.56 × 4,839.76
  4. Step 4: Simplify right side
    8,376.40x = 55,950,335.87
  5. Step 5: Solve for x
    x = 55,950,335.87/8,376.40
  6. Step 6: Final answer
    x = 6,679.52

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.