Home / 8,749.20-13,123.82-2,175.39

Finding the Fourth Proportional to 8,749.20, 13,123.82 and 2,175.39

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Solution

The fourth proportional to 8,749.20, 13,123.82 and 2,175.39 is: 3,263.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.20 : 13,123.82 = 2,175.39 : x
  2. Step 2: Convert to fraction form
    8,749.20/13,123.82 = 2,175.39/x
  3. Step 3: Cross multiply
    8,749.20x = 13,123.82 × 2,175.39
  4. Step 4: Simplify right side
    8,749.20x = 28,549,415.91
  5. Step 5: Solve for x
    x = 28,549,415.91/8,749.20
  6. Step 6: Final answer
    x = 3,263.09

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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.