Home / 8,261.12-12,391.68-4,373.12

Finding the Fourth Proportional to 8,261.12, 12,391.68 and 4,373.12

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Solution

The fourth proportional to 8,261.12, 12,391.68 and 4,373.12 is: 6,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.12 : 12,391.68 = 4,373.12 : x
  2. Step 2: Convert to fraction form
    8,261.12/12,391.68 = 4,373.12/x
  3. Step 3: Cross multiply
    8,261.12x = 12,391.68 × 4,373.12
  4. Step 4: Simplify right side
    8,261.12x = 54,190,303.64
  5. Step 5: Solve for x
    x = 54,190,303.64/8,261.12
  6. Step 6: Final answer
    x = 6,559.68

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Similar ratio
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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.