Home / 7,923.87-11,881.43-5,427.92

Finding the Fourth Proportional to 7,923.87, 11,881.43 and 5,427.92

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Solution

The fourth proportional to 7,923.87, 11,881.43 and 5,427.92 is: 8,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.87 : 11,881.43 = 5,427.92 : x
  2. Step 2: Convert to fraction form
    7,923.87/11,881.43 = 5,427.92/x
  3. Step 3: Cross multiply
    7,923.87x = 11,881.43 × 5,427.92
  4. Step 4: Simplify right side
    7,923.87x = 64,491,364.98
  5. Step 5: Solve for x
    x = 64,491,364.98/7,923.87
  6. Step 6: Final answer
    x = 8,138.87

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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.