Home / 13,934.88-20,905.38-7,359.53

Finding the Fourth Proportional to 13,934.88, 20,905.38 and 7,359.53

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Solution

The fourth proportional to 13,934.88, 20,905.38 and 7,359.53 is: 11,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.88 : 20,905.38 = 7,359.53 : x
  2. Step 2: Convert to fraction form
    13,934.88/20,905.38 = 7,359.53/x
  3. Step 3: Cross multiply
    13,934.88x = 20,905.38 × 7,359.53
  4. Step 4: Simplify right side
    13,934.88x = 153,853,666.74
  5. Step 5: Solve for x
    x = 153,853,666.74/13,934.88
  6. Step 6: Final answer
    x = 11,040.90

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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.