Home / 13,934.68-20,901.79-5,614.49

Finding the Fourth Proportional to 13,934.68, 20,901.79 and 5,614.49

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Solution

The fourth proportional to 13,934.68, 20,901.79 and 5,614.49 is: 8,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.68 : 20,901.79 = 5,614.49 : x
  2. Step 2: Convert to fraction form
    13,934.68/20,901.79 = 5,614.49/x
  3. Step 3: Cross multiply
    13,934.68x = 20,901.79 × 5,614.49
  4. Step 4: Simplify right side
    13,934.68x = 117,352,862.86
  5. Step 5: Solve for x
    x = 117,352,862.86/13,934.68
  6. Step 6: Final answer
    x = 8,421.64

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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.