Home / 15,091.31-20,825.61-8,376.92

Finding the Fourth Proportional to 15,091.31, 20,825.61 and 8,376.92

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Solution

The fourth proportional to 15,091.31, 20,825.61 and 8,376.92 is: 11,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.31 : 20,825.61 = 8,376.92 : x
  2. Step 2: Convert to fraction form
    15,091.31/20,825.61 = 8,376.92/x
  3. Step 3: Cross multiply
    15,091.31x = 20,825.61 × 8,376.92
  4. Step 4: Simplify right side
    15,091.31x = 174,454,468.92
  5. Step 5: Solve for x
    x = 174,454,468.92/15,091.31
  6. Step 6: Final answer
    x = 11,559.93

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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.