Home / 12,505.14-18,760.25-5,110.18

Finding the Fourth Proportional to 12,505.14, 18,760.25 and 5,110.18

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Solution

The fourth proportional to 12,505.14, 18,760.25 and 5,110.18 is: 7,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.14 : 18,760.25 = 5,110.18 : x
  2. Step 2: Convert to fraction form
    12,505.14/18,760.25 = 5,110.18/x
  3. Step 3: Cross multiply
    12,505.14x = 18,760.25 × 5,110.18
  4. Step 4: Simplify right side
    12,505.14x = 95,868,220.22
  5. Step 5: Solve for x
    x = 95,868,220.22/12,505.14
  6. Step 6: Final answer
    x = 7,666.31

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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.