Home / 10,891.27-15,023.54-6,851.66

Finding the Fourth Proportional to 10,891.27, 15,023.54 and 6,851.66

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Solution

The fourth proportional to 10,891.27, 15,023.54 and 6,851.66 is: 9,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.27 : 15,023.54 = 6,851.66 : x
  2. Step 2: Convert to fraction form
    10,891.27/15,023.54 = 6,851.66/x
  3. Step 3: Cross multiply
    10,891.27x = 15,023.54 × 6,851.66
  4. Step 4: Simplify right side
    10,891.27x = 102,936,188.08
  5. Step 5: Solve for x
    x = 102,936,188.08/10,891.27
  6. Step 6: Final answer
    x = 9,451.26

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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.