Home / 8,775.10-13,163.33-2,931.72

Finding the Fourth Proportional to 8,775.10, 13,163.33 and 2,931.72

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Solution

The fourth proportional to 8,775.10, 13,163.33 and 2,931.72 is: 4,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.10 : 13,163.33 = 2,931.72 : x
  2. Step 2: Convert to fraction form
    8,775.10/13,163.33 = 2,931.72/x
  3. Step 3: Cross multiply
    8,775.10x = 13,163.33 × 2,931.72
  4. Step 4: Simplify right side
    8,775.10x = 38,591,197.83
  5. Step 5: Solve for x
    x = 38,591,197.83/8,775.10
  6. Step 6: Final answer
    x = 4,397.81

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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.