Home / 12,434.28-18,645.84-3,666.12

Finding the Fourth Proportional to 12,434.28, 18,645.84 and 3,666.12

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Solution

The fourth proportional to 12,434.28, 18,645.84 and 3,666.12 is: 5,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,434.28 : 18,645.84 = 3,666.12 : x
  2. Step 2: Convert to fraction form
    12,434.28/18,645.84 = 3,666.12/x
  3. Step 3: Cross multiply
    12,434.28x = 18,645.84 × 3,666.12
  4. Step 4: Simplify right side
    12,434.28x = 68,357,886.94
  5. Step 5: Solve for x
    x = 68,357,886.94/12,434.28
  6. Step 6: Final answer
    x = 5,497.53

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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.