Home / 8,775.72-13,155.90-4,155.24

Finding the Fourth Proportional to 8,775.72, 13,155.90 and 4,155.24

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Solution

The fourth proportional to 8,775.72, 13,155.90 and 4,155.24 is: 6,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.72 : 13,155.90 = 4,155.24 : x
  2. Step 2: Convert to fraction form
    8,775.72/13,155.90 = 4,155.24/x
  3. Step 3: Cross multiply
    8,775.72x = 13,155.90 × 4,155.24
  4. Step 4: Simplify right side
    8,775.72x = 54,665,921.92
  5. Step 5: Solve for x
    x = 54,665,921.92/8,775.72
  6. Step 6: Final answer
    x = 6,229.22

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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.