Home / 9,013.40-13,520.13-2,439.75

Finding the Fourth Proportional to 9,013.40, 13,520.13 and 2,439.75

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Solution

The fourth proportional to 9,013.40, 13,520.13 and 2,439.75 is: 3,659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.40 : 13,520.13 = 2,439.75 : x
  2. Step 2: Convert to fraction form
    9,013.40/13,520.13 = 2,439.75/x
  3. Step 3: Cross multiply
    9,013.40x = 13,520.13 × 2,439.75
  4. Step 4: Simplify right side
    9,013.40x = 32,985,737.17
  5. Step 5: Solve for x
    x = 32,985,737.17/9,013.40
  6. Step 6: Final answer
    x = 3,659.63

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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.