Home / 8,747.28-13,118.40-2,902.32

Finding the Fourth Proportional to 8,747.28, 13,118.40 and 2,902.32

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Solution

The fourth proportional to 8,747.28, 13,118.40 and 2,902.32 is: 4,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.28 : 13,118.40 = 2,902.32 : x
  2. Step 2: Convert to fraction form
    8,747.28/13,118.40 = 2,902.32/x
  3. Step 3: Cross multiply
    8,747.28x = 13,118.40 × 2,902.32
  4. Step 4: Simplify right side
    8,747.28x = 38,073,794.69
  5. Step 5: Solve for x
    x = 38,073,794.69/8,747.28
  6. Step 6: Final answer
    x = 4,352.64

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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.