Home / 15,471.54-21,350.74-8,397.96

Finding the Fourth Proportional to 15,471.54, 21,350.74 and 8,397.96

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Solution

The fourth proportional to 15,471.54, 21,350.74 and 8,397.96 is: 11,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.54 : 21,350.74 = 8,397.96 : x
  2. Step 2: Convert to fraction form
    15,471.54/21,350.74 = 8,397.96/x
  3. Step 3: Cross multiply
    15,471.54x = 21,350.74 × 8,397.96
  4. Step 4: Simplify right side
    15,471.54x = 179,302,553.74
  5. Step 5: Solve for x
    x = 179,302,553.74/15,471.54
  6. Step 6: Final answer
    x = 11,589.19

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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.