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Finding the Fourth Proportional to 9,001.63, 13,478.79 and 6,354.87

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Solution

The fourth proportional to 9,001.63, 13,478.79 and 6,354.87 is: 9,515.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.63 : 13,478.79 = 6,354.87 : x
  2. Step 2: Convert to fraction form
    9,001.63/13,478.79 = 6,354.87/x
  3. Step 3: Cross multiply
    9,001.63x = 13,478.79 × 6,354.87
  4. Step 4: Simplify right side
    9,001.63x = 85,655,958.21
  5. Step 5: Solve for x
    x = 85,655,958.21/9,001.63
  6. Step 6: Final answer
    x = 9,515.61

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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.