Home / 12,126.60-18,141.30-10,960.20

Finding the Fourth Proportional to 12,126.60, 18,141.30 and 10,960.20

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Solution

The fourth proportional to 12,126.60, 18,141.30 and 10,960.20 is: 16,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.60 : 18,141.30 = 10,960.20 : x
  2. Step 2: Convert to fraction form
    12,126.60/18,141.30 = 10,960.20/x
  3. Step 3: Cross multiply
    12,126.60x = 18,141.30 × 10,960.20
  4. Step 4: Simplify right side
    12,126.60x = 198,832,276.26
  5. Step 5: Solve for x
    x = 198,832,276.26/12,126.60
  6. Step 6: Final answer
    x = 16,396.37

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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.