Home / 15,059.07-20,781.78-9,089.46

Finding the Fourth Proportional to 15,059.07, 20,781.78 and 9,089.46

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Solution

The fourth proportional to 15,059.07, 20,781.78 and 9,089.46 is: 12,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059.07 : 20,781.78 = 9,089.46 : x
  2. Step 2: Convert to fraction form
    15,059.07/20,781.78 = 9,089.46/x
  3. Step 3: Cross multiply
    15,059.07x = 20,781.78 × 9,089.46
  4. Step 4: Simplify right side
    15,059.07x = 188,895,158.04
  5. Step 5: Solve for x
    x = 188,895,158.04/15,059.07
  6. Step 6: Final answer
    x = 12,543.61

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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.