Home / 11,175.26-15,422.11-6,139.79

Finding the Fourth Proportional to 11,175.26, 15,422.11 and 6,139.79

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Solution

The fourth proportional to 11,175.26, 15,422.11 and 6,139.79 is: 8,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.26 : 15,422.11 = 6,139.79 : x
  2. Step 2: Convert to fraction form
    11,175.26/15,422.11 = 6,139.79/x
  3. Step 3: Cross multiply
    11,175.26x = 15,422.11 × 6,139.79
  4. Step 4: Simplify right side
    11,175.26x = 94,688,516.76
  5. Step 5: Solve for x
    x = 94,688,516.76/11,175.26
  6. Step 6: Final answer
    x = 8,473.05

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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.