Home / 10,891.29-15,029.96-6,175.56

Finding the Fourth Proportional to 10,891.29, 15,029.96 and 6,175.56

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Solution

The fourth proportional to 10,891.29, 15,029.96 and 6,175.56 is: 8,522.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.29 : 15,029.96 = 6,175.56 : x
  2. Step 2: Convert to fraction form
    10,891.29/15,029.96 = 6,175.56/x
  3. Step 3: Cross multiply
    10,891.29x = 15,029.96 × 6,175.56
  4. Step 4: Simplify right side
    10,891.29x = 92,818,388.90
  5. Step 5: Solve for x
    x = 92,818,388.90/10,891.29
  6. Step 6: Final answer
    x = 8,522.26

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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.