Home / 15,185.34-20,955.66-8,471.04

Finding the Fourth Proportional to 15,185.34, 20,955.66 and 8,471.04

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Solution

The fourth proportional to 15,185.34, 20,955.66 and 8,471.04 is: 11,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.34 : 20,955.66 = 8,471.04 : x
  2. Step 2: Convert to fraction form
    15,185.34/20,955.66 = 8,471.04/x
  3. Step 3: Cross multiply
    15,185.34x = 20,955.66 × 8,471.04
  4. Step 4: Simplify right side
    15,185.34x = 177,516,234.09
  5. Step 5: Solve for x
    x = 177,516,234.09/15,185.34
  6. Step 6: Final answer
    x = 11,689.97

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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.