Home / 12,382.97-17,084.01-8,136.32

Finding the Fourth Proportional to 12,382.97, 17,084.01 and 8,136.32

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Solution

The fourth proportional to 12,382.97, 17,084.01 and 8,136.32 is: 11,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.97 : 17,084.01 = 8,136.32 : x
  2. Step 2: Convert to fraction form
    12,382.97/17,084.01 = 8,136.32/x
  3. Step 3: Cross multiply
    12,382.97x = 17,084.01 × 8,136.32
  4. Step 4: Simplify right side
    12,382.97x = 139,000,876.65
  5. Step 5: Solve for x
    x = 139,000,876.65/12,382.97
  6. Step 6: Final answer
    x = 11,225.17

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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.