Home / 12,512.87-17,175.77-11,064.82

Finding the Fourth Proportional to 12,512.87, 17,175.77 and 11,064.82

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Solution

The fourth proportional to 12,512.87, 17,175.77 and 11,064.82 is: 15,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.87 : 17,175.77 = 11,064.82 : x
  2. Step 2: Convert to fraction form
    12,512.87/17,175.77 = 11,064.82/x
  3. Step 3: Cross multiply
    12,512.87x = 17,175.77 × 11,064.82
  4. Step 4: Simplify right side
    12,512.87x = 190,046,803.41
  5. Step 5: Solve for x
    x = 190,046,803.41/12,512.87
  6. Step 6: Final answer
    x = 15,188.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.