Home / 12,270.18-18,402.18-3,505.14

Finding the Fourth Proportional to 12,270.18, 18,402.18 and 3,505.14

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Solution

The fourth proportional to 12,270.18, 18,402.18 and 3,505.14 is: 5,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.18 : 18,402.18 = 3,505.14 : x
  2. Step 2: Convert to fraction form
    12,270.18/18,402.18 = 3,505.14/x
  3. Step 3: Cross multiply
    12,270.18x = 18,402.18 × 3,505.14
  4. Step 4: Simplify right side
    12,270.18x = 64,502,217.21
  5. Step 5: Solve for x
    x = 64,502,217.21/12,270.18
  6. Step 6: Final answer
    x = 5,256.83

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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.