Home / 8,765.16-13,146.93-3,498.78

Finding the Fourth Proportional to 8,765.16, 13,146.93 and 3,498.78

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Solution

The fourth proportional to 8,765.16, 13,146.93 and 3,498.78 is: 5,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.16 : 13,146.93 = 3,498.78 : x
  2. Step 2: Convert to fraction form
    8,765.16/13,146.93 = 3,498.78/x
  3. Step 3: Cross multiply
    8,765.16x = 13,146.93 × 3,498.78
  4. Step 4: Simplify right side
    8,765.16x = 45,998,215.75
  5. Step 5: Solve for x
    x = 45,998,215.75/8,765.16
  6. Step 6: Final answer
    x = 5,247.85

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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.