Home / 8,119.30-12,182.80-5,624.32

Finding the Fourth Proportional to 8,119.30, 12,182.80 and 5,624.32

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Solution

The fourth proportional to 8,119.30, 12,182.80 and 5,624.32 is: 8,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.30 : 12,182.80 = 5,624.32 : x
  2. Step 2: Convert to fraction form
    8,119.30/12,182.80 = 5,624.32/x
  3. Step 3: Cross multiply
    8,119.30x = 12,182.80 × 5,624.32
  4. Step 4: Simplify right side
    8,119.30x = 68,519,965.70
  5. Step 5: Solve for x
    x = 68,519,965.70/8,119.30
  6. Step 6: Final answer
    x = 8,439.15

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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.