Home / 12,217.65-18,326.14-3,898.17

Finding the Fourth Proportional to 12,217.65, 18,326.14 and 3,898.17

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Solution

The fourth proportional to 12,217.65, 18,326.14 and 3,898.17 is: 5,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.65 : 18,326.14 = 3,898.17 : x
  2. Step 2: Convert to fraction form
    12,217.65/18,326.14 = 3,898.17/x
  3. Step 3: Cross multiply
    12,217.65x = 18,326.14 × 3,898.17
  4. Step 4: Simplify right side
    12,217.65x = 71,438,298.04
  5. Step 5: Solve for x
    x = 71,438,298.04/12,217.65
  6. Step 6: Final answer
    x = 5,847.14

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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.