Home / 13,614.36-20,421.56-3,753.76

Finding the Fourth Proportional to 13,614.36, 20,421.56 and 3,753.76

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Solution

The fourth proportional to 13,614.36, 20,421.56 and 3,753.76 is: 5,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.36 : 20,421.56 = 3,753.76 : x
  2. Step 2: Convert to fraction form
    13,614.36/20,421.56 = 3,753.76/x
  3. Step 3: Cross multiply
    13,614.36x = 20,421.56 × 3,753.76
  4. Step 4: Simplify right side
    13,614.36x = 76,657,635.07
  5. Step 5: Solve for x
    x = 76,657,635.07/13,614.36
  6. Step 6: Final answer
    x = 5,630.65

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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.