Home / 12,217.36-18,330.13-3,898.56

Finding the Fourth Proportional to 12,217.36, 18,330.13 and 3,898.56

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Solution

The fourth proportional to 12,217.36, 18,330.13 and 3,898.56 is: 5,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.36 : 18,330.13 = 3,898.56 : x
  2. Step 2: Convert to fraction form
    12,217.36/18,330.13 = 3,898.56/x
  3. Step 3: Cross multiply
    12,217.36x = 18,330.13 × 3,898.56
  4. Step 4: Simplify right side
    12,217.36x = 71,461,000.47
  5. Step 5: Solve for x
    x = 71,461,000.47/12,217.36
  6. Step 6: Final answer
    x = 5,849.14

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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.