Home / 10,114.60-15,166.22-7,768.76

Finding the Fourth Proportional to 10,114.60, 15,166.22 and 7,768.76

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Solution

The fourth proportional to 10,114.60, 15,166.22 and 7,768.76 is: 11,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.60 : 15,166.22 = 7,768.76 : x
  2. Step 2: Convert to fraction form
    10,114.60/15,166.22 = 7,768.76/x
  3. Step 3: Cross multiply
    10,114.60x = 15,166.22 × 7,768.76
  4. Step 4: Simplify right side
    10,114.60x = 117,822,723.29
  5. Step 5: Solve for x
    x = 117,822,723.29/10,114.60
  6. Step 6: Final answer
    x = 11,648.78

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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.