Home / 10,600.70-15,954.21-7,981.76

Finding the Fourth Proportional to 10,600.70, 15,954.21 and 7,981.76

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Solution

The fourth proportional to 10,600.70, 15,954.21 and 7,981.76 is: 12,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,600.70 : 15,954.21 = 7,981.76 : x
  2. Step 2: Convert to fraction form
    10,600.70/15,954.21 = 7,981.76/x
  3. Step 3: Cross multiply
    10,600.70x = 15,954.21 × 7,981.76
  4. Step 4: Simplify right side
    10,600.70x = 127,342,715.10
  5. Step 5: Solve for x
    x = 127,342,715.10/10,600.70
  6. Step 6: Final answer
    x = 12,012.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.