Home / 11,175.80-15,422.67-6,140.43

Finding the Fourth Proportional to 11,175.80, 15,422.67 and 6,140.43

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Solution

The fourth proportional to 11,175.80, 15,422.67 and 6,140.43 is: 8,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.80 : 15,422.67 = 6,140.43 : x
  2. Step 2: Convert to fraction form
    11,175.80/15,422.67 = 6,140.43/x
  3. Step 3: Cross multiply
    11,175.80x = 15,422.67 × 6,140.43
  4. Step 4: Simplify right side
    11,175.80x = 94,701,825.55
  5. Step 5: Solve for x
    x = 94,701,825.55/11,175.80
  6. Step 6: Final answer
    x = 8,473.83

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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.