Home / 10,949.76-15,110.66-5,981.76

Finding the Fourth Proportional to 10,949.76, 15,110.66 and 5,981.76

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Solution

The fourth proportional to 10,949.76, 15,110.66 and 5,981.76 is: 8,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.76 : 15,110.66 = 5,981.76 : x
  2. Step 2: Convert to fraction form
    10,949.76/15,110.66 = 5,981.76/x
  3. Step 3: Cross multiply
    10,949.76x = 15,110.66 × 5,981.76
  4. Step 4: Simplify right side
    10,949.76x = 90,388,341.56
  5. Step 5: Solve for x
    x = 90,388,341.56/10,949.76
  6. Step 6: Final answer
    x = 8,254.82

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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.