Home / 12,505.88-18,732.36-8,110.28

Finding the Fourth Proportional to 12,505.88, 18,732.36 and 8,110.28

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Solution

The fourth proportional to 12,505.88, 18,732.36 and 8,110.28 is: 12,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.88 : 18,732.36 = 8,110.28 : x
  2. Step 2: Convert to fraction form
    12,505.88/18,732.36 = 8,110.28/x
  3. Step 3: Cross multiply
    12,505.88x = 18,732.36 × 8,110.28
  4. Step 4: Simplify right side
    12,505.88x = 151,924,684.66
  5. Step 5: Solve for x
    x = 151,924,684.66/12,505.88
  6. Step 6: Final answer
    x = 12,148.26

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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.