Home / 18,759.55-25,896.15-11,689.46

Finding the Fourth Proportional to 18,759.55, 25,896.15 and 11,689.46

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Solution

The fourth proportional to 18,759.55, 25,896.15 and 11,689.46 is: 16,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.55 : 25,896.15 = 11,689.46 : x
  2. Step 2: Convert to fraction form
    18,759.55/25,896.15 = 11,689.46/x
  3. Step 3: Cross multiply
    18,759.55x = 25,896.15 × 11,689.46
  4. Step 4: Simplify right side
    18,759.55x = 302,711,951.13
  5. Step 5: Solve for x
    x = 302,711,951.13/18,759.55
  6. Step 6: Final answer
    x = 16,136.42

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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.