Home / 9,013.12-13,519.60-2,439.92

Finding the Fourth Proportional to 9,013.12, 13,519.60 and 2,439.92

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Solution

The fourth proportional to 9,013.12, 13,519.60 and 2,439.92 is: 3,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.12 : 13,519.60 = 2,439.92 : x
  2. Step 2: Convert to fraction form
    9,013.12/13,519.60 = 2,439.92/x
  3. Step 3: Cross multiply
    9,013.12x = 13,519.60 × 2,439.92
  4. Step 4: Simplify right side
    9,013.12x = 32,986,742.43
  5. Step 5: Solve for x
    x = 32,986,742.43/9,013.12
  6. Step 6: Final answer
    x = 3,659.86

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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.