Home / 6,155.92-9,220.80-5,715.28

Finding the Fourth Proportional to 6,155.92, 9,220.80 and 5,715.28

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Solution

The fourth proportional to 6,155.92, 9,220.80 and 5,715.28 is: 8,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,155.92 : 9,220.80 = 5,715.28 : x
  2. Step 2: Convert to fraction form
    6,155.92/9,220.80 = 5,715.28/x
  3. Step 3: Cross multiply
    6,155.92x = 9,220.80 × 5,715.28
  4. Step 4: Simplify right side
    6,155.92x = 52,699,453.82
  5. Step 5: Solve for x
    x = 52,699,453.82/6,155.92
  6. Step 6: Final answer
    x = 8,560.78

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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.