Home / 26,861.76-40,283.11-7,881.10

Finding the Fourth Proportional to 26,861.76, 40,283.11 and 7,881.10

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Solution

The fourth proportional to 26,861.76, 40,283.11 and 7,881.10 is: 11,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.76 : 40,283.11 = 7,881.10 : x
  2. Step 2: Convert to fraction form
    26,861.76/40,283.11 = 7,881.10/x
  3. Step 3: Cross multiply
    26,861.76x = 40,283.11 × 7,881.10
  4. Step 4: Simplify right side
    26,861.76x = 317,475,278.43
  5. Step 5: Solve for x
    x = 317,475,278.43/26,861.76
  6. Step 6: Final answer
    x = 11,818.85

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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.