Home / 12,063.46-18,177.37-9,920.20

Finding the Fourth Proportional to 12,063.46, 18,177.37 and 9,920.20

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Solution

The fourth proportional to 12,063.46, 18,177.37 and 9,920.20 is: 14,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,063.46 : 18,177.37 = 9,920.20 : x
  2. Step 2: Convert to fraction form
    12,063.46/18,177.37 = 9,920.20/x
  3. Step 3: Cross multiply
    12,063.46x = 18,177.37 × 9,920.20
  4. Step 4: Simplify right side
    12,063.46x = 180,323,145.87
  5. Step 5: Solve for x
    x = 180,323,145.87/12,063.46
  6. Step 6: Final answer
    x = 14,947.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.