Home / 12,707.32-17,517.54-8,919.04

Finding the Fourth Proportional to 12,707.32, 17,517.54 and 8,919.04

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Solution

The fourth proportional to 12,707.32, 17,517.54 and 8,919.04 is: 12,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.32 : 17,517.54 = 8,919.04 : x
  2. Step 2: Convert to fraction form
    12,707.32/17,517.54 = 8,919.04/x
  3. Step 3: Cross multiply
    12,707.32x = 17,517.54 × 8,919.04
  4. Step 4: Simplify right side
    12,707.32x = 156,239,639.96
  5. Step 5: Solve for x
    x = 156,239,639.96/12,707.32
  6. Step 6: Final answer
    x = 12,295.25

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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.