Home / 15,834.32-21,850.76-8,761.04

Finding the Fourth Proportional to 15,834.32, 21,850.76 and 8,761.04

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Solution

The fourth proportional to 15,834.32, 21,850.76 and 8,761.04 is: 12,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.32 : 21,850.76 = 8,761.04 : x
  2. Step 2: Convert to fraction form
    15,834.32/21,850.76 = 8,761.04/x
  3. Step 3: Cross multiply
    15,834.32x = 21,850.76 × 8,761.04
  4. Step 4: Simplify right side
    15,834.32x = 191,435,382.39
  5. Step 5: Solve for x
    x = 191,435,382.39/15,834.32
  6. Step 6: Final answer
    x = 12,089.90

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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.