Home / 8,349.32-12,520.20-3,972.08

Finding the Fourth Proportional to 8,349.32, 12,520.20 and 3,972.08

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Solution

The fourth proportional to 8,349.32, 12,520.20 and 3,972.08 is: 5,956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.32 : 12,520.20 = 3,972.08 : x
  2. Step 2: Convert to fraction form
    8,349.32/12,520.20 = 3,972.08/x
  3. Step 3: Cross multiply
    8,349.32x = 12,520.20 × 3,972.08
  4. Step 4: Simplify right side
    8,349.32x = 49,731,236.02
  5. Step 5: Solve for x
    x = 49,731,236.02/8,349.32
  6. Step 6: Final answer
    x = 5,956.32

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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.