Home / 8,958.44-13,437.78-3,115.16

Finding the Fourth Proportional to 8,958.44, 13,437.78 and 3,115.16

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Solution

The fourth proportional to 8,958.44, 13,437.78 and 3,115.16 is: 4,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.44 : 13,437.78 = 3,115.16 : x
  2. Step 2: Convert to fraction form
    8,958.44/13,437.78 = 3,115.16/x
  3. Step 3: Cross multiply
    8,958.44x = 13,437.78 × 3,115.16
  4. Step 4: Simplify right side
    8,958.44x = 41,860,834.74
  5. Step 5: Solve for x
    x = 41,860,834.74/8,958.44
  6. Step 6: Final answer
    x = 4,672.78

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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.