Home / 13,414.04-20,118.40-6,748.76

Finding the Fourth Proportional to 13,414.04, 20,118.40 and 6,748.76

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Solution

The fourth proportional to 13,414.04, 20,118.40 and 6,748.76 is: 10,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.04 : 20,118.40 = 6,748.76 : x
  2. Step 2: Convert to fraction form
    13,414.04/20,118.40 = 6,748.76/x
  3. Step 3: Cross multiply
    13,414.04x = 20,118.40 × 6,748.76
  4. Step 4: Simplify right side
    13,414.04x = 135,774,253.18
  5. Step 5: Solve for x
    x = 135,774,253.18/13,414.04
  6. Step 6: Final answer
    x = 10,121.80

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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.