Home / 13,134.96-18,126.65-7,166.95

Finding the Fourth Proportional to 13,134.96, 18,126.65 and 7,166.95

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Solution

The fourth proportional to 13,134.96, 18,126.65 and 7,166.95 is: 9,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.96 : 18,126.65 = 7,166.95 : x
  2. Step 2: Convert to fraction form
    13,134.96/18,126.65 = 7,166.95/x
  3. Step 3: Cross multiply
    13,134.96x = 18,126.65 × 7,166.95
  4. Step 4: Simplify right side
    13,134.96x = 129,912,766.82
  5. Step 5: Solve for x
    x = 129,912,766.82/13,134.96
  6. Step 6: Final answer
    x = 9,890.61

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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.