Home / 13,886.38-20,829.30-3,498.22

Finding the Fourth Proportional to 13,886.38, 20,829.30 and 3,498.22

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Solution

The fourth proportional to 13,886.38, 20,829.30 and 3,498.22 is: 5,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.38 : 20,829.30 = 3,498.22 : x
  2. Step 2: Convert to fraction form
    13,886.38/20,829.30 = 3,498.22/x
  3. Step 3: Cross multiply
    13,886.38x = 20,829.30 × 3,498.22
  4. Step 4: Simplify right side
    13,886.38x = 72,865,473.85
  5. Step 5: Solve for x
    x = 72,865,473.85/13,886.38
  6. Step 6: Final answer
    x = 5,247.26

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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.