Home / 7,405.92-11,100.78-5,560.74

Finding the Fourth Proportional to 7,405.92, 11,100.78 and 5,560.74

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Solution

The fourth proportional to 7,405.92, 11,100.78 and 5,560.74 is: 8,335.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.92 : 11,100.78 = 5,560.74 : x
  2. Step 2: Convert to fraction form
    7,405.92/11,100.78 = 5,560.74/x
  3. Step 3: Cross multiply
    7,405.92x = 11,100.78 × 5,560.74
  4. Step 4: Simplify right side
    7,405.92x = 61,728,551.38
  5. Step 5: Solve for x
    x = 61,728,551.38/7,405.92
  6. Step 6: Final answer
    x = 8,335.03

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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.