Home / 8,785.55-13,177.85-2,211.72

Finding the Fourth Proportional to 8,785.55, 13,177.85 and 2,211.72

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Solution

The fourth proportional to 8,785.55, 13,177.85 and 2,211.72 is: 3,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.55 : 13,177.85 = 2,211.72 : x
  2. Step 2: Convert to fraction form
    8,785.55/13,177.85 = 2,211.72/x
  3. Step 3: Cross multiply
    8,785.55x = 13,177.85 × 2,211.72
  4. Step 4: Simplify right side
    8,785.55x = 29,145,703.34
  5. Step 5: Solve for x
    x = 29,145,703.34/8,785.55
  6. Step 6: Final answer
    x = 3,317.46

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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.