Home / 12,160.45-18,226.11-7,945.71

Finding the Fourth Proportional to 12,160.45, 18,226.11 and 7,945.71

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Solution

The fourth proportional to 12,160.45, 18,226.11 and 7,945.71 is: 11,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.45 : 18,226.11 = 7,945.71 : x
  2. Step 2: Convert to fraction form
    12,160.45/18,226.11 = 7,945.71/x
  3. Step 3: Cross multiply
    12,160.45x = 18,226.11 × 7,945.71
  4. Step 4: Simplify right side
    12,160.45x = 144,819,448.46
  5. Step 5: Solve for x
    x = 144,819,448.46/12,160.45
  6. Step 6: Final answer
    x = 11,909.06

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Double scale
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Similar ratio
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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.