Home / 8,125.49-12,189.32-2,282.15

Finding the Fourth Proportional to 8,125.49, 12,189.32 and 2,282.15

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Solution

The fourth proportional to 8,125.49, 12,189.32 and 2,282.15 is: 3,423.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.49 : 12,189.32 = 2,282.15 : x
  2. Step 2: Convert to fraction form
    8,125.49/12,189.32 = 2,282.15/x
  3. Step 3: Cross multiply
    8,125.49x = 12,189.32 × 2,282.15
  4. Step 4: Simplify right side
    8,125.49x = 27,817,856.64
  5. Step 5: Solve for x
    x = 27,817,856.64/8,125.49
  6. Step 6: Final answer
    x = 3,423.53

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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.