Home / 12,839.98-19,227.08-8,885.76

Finding the Fourth Proportional to 12,839.98, 19,227.08 and 8,885.76

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Solution

The fourth proportional to 12,839.98, 19,227.08 and 8,885.76 is: 13,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.98 : 19,227.08 = 8,885.76 : x
  2. Step 2: Convert to fraction form
    12,839.98/19,227.08 = 8,885.76/x
  3. Step 3: Cross multiply
    12,839.98x = 19,227.08 × 8,885.76
  4. Step 4: Simplify right side
    12,839.98x = 170,847,245.24
  5. Step 5: Solve for x
    x = 170,847,245.24/12,839.98
  6. Step 6: Final answer
    x = 13,305.88

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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.