Home / 11,175.83-15,422.60-6,140.37

Finding the Fourth Proportional to 11,175.83, 15,422.60 and 6,140.37

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Solution

The fourth proportional to 11,175.83, 15,422.60 and 6,140.37 is: 8,473.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.83 : 15,422.60 = 6,140.37 : x
  2. Step 2: Convert to fraction form
    11,175.83/15,422.60 = 6,140.37/x
  3. Step 3: Cross multiply
    11,175.83x = 15,422.60 × 6,140.37
  4. Step 4: Simplify right side
    11,175.83x = 94,700,439.66
  5. Step 5: Solve for x
    x = 94,700,439.66/11,175.83
  6. Step 6: Final answer
    x = 8,473.69

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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.