Home / 15,172.60-20,937.48-8,458.96

Finding the Fourth Proportional to 15,172.60, 20,937.48 and 8,458.96

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Solution

The fourth proportional to 15,172.60, 20,937.48 and 8,458.96 is: 11,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.60 : 20,937.48 = 8,458.96 : x
  2. Step 2: Convert to fraction form
    15,172.60/20,937.48 = 8,458.96/x
  3. Step 3: Cross multiply
    15,172.60x = 20,937.48 × 8,458.96
  4. Step 4: Simplify right side
    15,172.60x = 177,109,305.82
  5. Step 5: Solve for x
    x = 177,109,305.82/15,172.60
  6. Step 6: Final answer
    x = 11,672.97

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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.