Home / 12,885.97-19,331.97-4,000.84

Finding the Fourth Proportional to 12,885.97, 19,331.97 and 4,000.84

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Solution

The fourth proportional to 12,885.97, 19,331.97 and 4,000.84 is: 6,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.97 : 19,331.97 = 4,000.84 : x
  2. Step 2: Convert to fraction form
    12,885.97/19,331.97 = 4,000.84/x
  3. Step 3: Cross multiply
    12,885.97x = 19,331.97 × 4,000.84
  4. Step 4: Simplify right side
    12,885.97x = 77,344,080.53
  5. Step 5: Solve for x
    x = 77,344,080.53/12,885.97
  6. Step 6: Final answer
    x = 6,002.20

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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.