Home / 8,748.12-13,122.96-2,904.78

Finding the Fourth Proportional to 8,748.12, 13,122.96 and 2,904.78

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Solution

The fourth proportional to 8,748.12, 13,122.96 and 2,904.78 is: 4,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.12 : 13,122.96 = 2,904.78 : x
  2. Step 2: Convert to fraction form
    8,748.12/13,122.96 = 2,904.78/x
  3. Step 3: Cross multiply
    8,748.12x = 13,122.96 × 2,904.78
  4. Step 4: Simplify right side
    8,748.12x = 38,119,311.75
  5. Step 5: Solve for x
    x = 38,119,311.75/8,748.12
  6. Step 6: Final answer
    x = 4,357.43

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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.