Home / 12,482.28-17,217.90-8,505.18

Finding the Fourth Proportional to 12,482.28, 17,217.90 and 8,505.18

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Solution

The fourth proportional to 12,482.28, 17,217.90 and 8,505.18 is: 11,731.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.28 : 17,217.90 = 8,505.18 : x
  2. Step 2: Convert to fraction form
    12,482.28/17,217.90 = 8,505.18/x
  3. Step 3: Cross multiply
    12,482.28x = 17,217.90 × 8,505.18
  4. Step 4: Simplify right side
    12,482.28x = 146,441,338.72
  5. Step 5: Solve for x
    x = 146,441,338.72/12,482.28
  6. Step 6: Final answer
    x = 11,731.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.