Home / 7,944.87-11,916.65-2,679.76

Finding the Fourth Proportional to 7,944.87, 11,916.65 and 2,679.76

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Solution

The fourth proportional to 7,944.87, 11,916.65 and 2,679.76 is: 4,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.87 : 11,916.65 = 2,679.76 : x
  2. Step 2: Convert to fraction form
    7,944.87/11,916.65 = 2,679.76/x
  3. Step 3: Cross multiply
    7,944.87x = 11,916.65 × 2,679.76
  4. Step 4: Simplify right side
    7,944.87x = 31,933,762.00
  5. Step 5: Solve for x
    x = 31,933,762.00/7,944.87
  6. Step 6: Final answer
    x = 4,019.42

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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.