Home / 13,134.41-18,125.54-7,166.20

Finding the Fourth Proportional to 13,134.41, 18,125.54 and 7,166.20

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Solution

The fourth proportional to 13,134.41, 18,125.54 and 7,166.20 is: 9,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.41 : 18,125.54 = 7,166.20 : x
  2. Step 2: Convert to fraction form
    13,134.41/18,125.54 = 7,166.20/x
  3. Step 3: Cross multiply
    13,134.41x = 18,125.54 × 7,166.20
  4. Step 4: Simplify right side
    13,134.41x = 129,891,262.66
  5. Step 5: Solve for x
    x = 129,891,262.66/13,134.41
  6. Step 6: Final answer
    x = 9,889.39

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Half scale
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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.