Home / 8,409.35-12,612.57-3,791.27

Finding the Fourth Proportional to 8,409.35, 12,612.57 and 3,791.27

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Solution

The fourth proportional to 8,409.35, 12,612.57 and 3,791.27 is: 5,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.35 : 12,612.57 = 3,791.27 : x
  2. Step 2: Convert to fraction form
    8,409.35/12,612.57 = 3,791.27/x
  3. Step 3: Cross multiply
    8,409.35x = 12,612.57 × 3,791.27
  4. Step 4: Simplify right side
    8,409.35x = 47,817,595.20
  5. Step 5: Solve for x
    x = 47,817,595.20/8,409.35
  6. Step 6: Final answer
    x = 5,686.24

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Double scale
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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.