Home / 12,759.22-17,589.18-8,970.76

Finding the Fourth Proportional to 12,759.22, 17,589.18 and 8,970.76

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Solution

The fourth proportional to 12,759.22, 17,589.18 and 8,970.76 is: 12,366.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.22 : 17,589.18 = 8,970.76 : x
  2. Step 2: Convert to fraction form
    12,759.22/17,589.18 = 8,970.76/x
  3. Step 3: Cross multiply
    12,759.22x = 17,589.18 × 8,970.76
  4. Step 4: Simplify right side
    12,759.22x = 157,788,312.38
  5. Step 5: Solve for x
    x = 157,788,312.38/12,759.22
  6. Step 6: Final answer
    x = 12,366.61

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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.