Home / 11,839.28-16,338.24-6,461.76

Finding the Fourth Proportional to 11,839.28, 16,338.24 and 6,461.76

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Solution

The fourth proportional to 11,839.28, 16,338.24 and 6,461.76 is: 8,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839.28 : 16,338.24 = 6,461.76 : x
  2. Step 2: Convert to fraction form
    11,839.28/16,338.24 = 6,461.76/x
  3. Step 3: Cross multiply
    11,839.28x = 16,338.24 × 6,461.76
  4. Step 4: Simplify right side
    11,839.28x = 105,573,776.87
  5. Step 5: Solve for x
    x = 105,573,776.87/11,839.28
  6. Step 6: Final answer
    x = 8,917.25

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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.