Home / 12,110.49-18,165.73-5,180.13

Finding the Fourth Proportional to 12,110.49, 18,165.73 and 5,180.13

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Solution

The fourth proportional to 12,110.49, 18,165.73 and 5,180.13 is: 7,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.49 : 18,165.73 = 5,180.13 : x
  2. Step 2: Convert to fraction form
    12,110.49/18,165.73 = 5,180.13/x
  3. Step 3: Cross multiply
    12,110.49x = 18,165.73 × 5,180.13
  4. Step 4: Simplify right side
    12,110.49x = 94,100,842.94
  5. Step 5: Solve for x
    x = 94,100,842.94/12,110.49
  6. Step 6: Final answer
    x = 7,770.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.