Home / 13,890.62-20,839.34-4,531.14

Finding the Fourth Proportional to 13,890.62, 20,839.34 and 4,531.14

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Solution

The fourth proportional to 13,890.62, 20,839.34 and 4,531.14 is: 6,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.62 : 20,839.34 = 4,531.14 : x
  2. Step 2: Convert to fraction form
    13,890.62/20,839.34 = 4,531.14/x
  3. Step 3: Cross multiply
    13,890.62x = 20,839.34 × 4,531.14
  4. Step 4: Simplify right side
    13,890.62x = 94,425,978.38
  5. Step 5: Solve for x
    x = 94,425,978.38/13,890.62
  6. Step 6: Final answer
    x = 6,797.82

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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.