Home / 11,175.36-15,422.41-6,140.15

Finding the Fourth Proportional to 11,175.36, 15,422.41 and 6,140.15

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Solution

The fourth proportional to 11,175.36, 15,422.41 and 6,140.15 is: 8,473.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.36 : 15,422.41 = 6,140.15 : x
  2. Step 2: Convert to fraction form
    11,175.36/15,422.41 = 6,140.15/x
  3. Step 3: Cross multiply
    11,175.36x = 15,422.41 × 6,140.15
  4. Step 4: Simplify right side
    11,175.36x = 94,695,910.76
  5. Step 5: Solve for x
    x = 94,695,910.76/11,175.36
  6. Step 6: Final answer
    x = 8,473.63

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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.