Home / 19,861.18-29,799.47-8,760.03

Finding the Fourth Proportional to 19,861.18, 29,799.47 and 8,760.03

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Solution

The fourth proportional to 19,861.18, 29,799.47 and 8,760.03 is: 13,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.18 : 29,799.47 = 8,760.03 : x
  2. Step 2: Convert to fraction form
    19,861.18/29,799.47 = 8,760.03/x
  3. Step 3: Cross multiply
    19,861.18x = 29,799.47 × 8,760.03
  4. Step 4: Simplify right side
    19,861.18x = 261,044,251.18
  5. Step 5: Solve for x
    x = 261,044,251.18/19,861.18
  6. Step 6: Final answer
    x = 13,143.44

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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.