Home / 12,250.20-16,902.18-7,212.60

Finding the Fourth Proportional to 12,250.20, 16,902.18 and 7,212.60

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Solution

The fourth proportional to 12,250.20, 16,902.18 and 7,212.60 is: 9,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.20 : 16,902.18 = 7,212.60 : x
  2. Step 2: Convert to fraction form
    12,250.20/16,902.18 = 7,212.60/x
  3. Step 3: Cross multiply
    12,250.20x = 16,902.18 × 7,212.60
  4. Step 4: Simplify right side
    12,250.20x = 121,908,663.47
  5. Step 5: Solve for x
    x = 121,908,663.47/12,250.20
  6. Step 6: Final answer
    x = 9,951.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.