Home / 13,488.15-20,236.17-6,918.92

Finding the Fourth Proportional to 13,488.15, 20,236.17 and 6,918.92

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Solution

The fourth proportional to 13,488.15, 20,236.17 and 6,918.92 is: 10,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.15 : 20,236.17 = 6,918.92 : x
  2. Step 2: Convert to fraction form
    13,488.15/20,236.17 = 6,918.92/x
  3. Step 3: Cross multiply
    13,488.15x = 20,236.17 × 6,918.92
  4. Step 4: Simplify right side
    13,488.15x = 140,012,340.16
  5. Step 5: Solve for x
    x = 140,012,340.16/13,488.15
  6. Step 6: Final answer
    x = 10,380.40

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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.