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Finding the Fourth Proportional to 8,999.91, 13,500.47 and 2,426.15

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Solution

The fourth proportional to 8,999.91, 13,500.47 and 2,426.15 is: 3,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.91 : 13,500.47 = 2,426.15 : x
  2. Step 2: Convert to fraction form
    8,999.91/13,500.47 = 2,426.15/x
  3. Step 3: Cross multiply
    8,999.91x = 13,500.47 × 2,426.15
  4. Step 4: Simplify right side
    8,999.91x = 32,754,205.11
  5. Step 5: Solve for x
    x = 32,754,205.11/8,999.91
  6. Step 6: Final answer
    x = 3,639.39

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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.