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Finding the Fourth Proportional to 15,000.59, 20,701.23 and 8,285.83

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Solution

The fourth proportional to 15,000.59, 20,701.23 and 8,285.83 is: 11,434.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.59 : 20,701.23 = 8,285.83 : x
  2. Step 2: Convert to fraction form
    15,000.59/20,701.23 = 8,285.83/x
  3. Step 3: Cross multiply
    15,000.59x = 20,701.23 × 8,285.83
  4. Step 4: Simplify right side
    15,000.59x = 171,526,872.57
  5. Step 5: Solve for x
    x = 171,526,872.57/15,000.59
  6. Step 6: Final answer
    x = 11,434.68

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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.