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Finding the Fourth Proportional to 15,000.08, 20,700.27 and 8,285.89

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Solution

The fourth proportional to 15,000.08, 20,700.27 and 8,285.89 is: 11,434.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.08 : 20,700.27 = 8,285.89 : x
  2. Step 2: Convert to fraction form
    15,000.08/20,700.27 = 8,285.89/x
  3. Step 3: Cross multiply
    15,000.08x = 20,700.27 × 8,285.89
  4. Step 4: Simplify right side
    15,000.08x = 171,520,056.69
  5. Step 5: Solve for x
    x = 171,520,056.69/15,000.08
  6. Step 6: Final answer
    x = 11,434.61

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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.