Home / 10,888.38-15,025.68-6,172.56

Finding the Fourth Proportional to 10,888.38, 15,025.68 and 6,172.56

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Solution

The fourth proportional to 10,888.38, 15,025.68 and 6,172.56 is: 8,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.38 : 15,025.68 = 6,172.56 : x
  2. Step 2: Convert to fraction form
    10,888.38/15,025.68 = 6,172.56/x
  3. Step 3: Cross multiply
    10,888.38x = 15,025.68 × 6,172.56
  4. Step 4: Simplify right side
    10,888.38x = 92,746,911.34
  5. Step 5: Solve for x
    x = 92,746,911.34/10,888.38
  6. Step 6: Final answer
    x = 8,517.97

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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.