Home / 8,102.72-12,146.40-3,488.96

Finding the Fourth Proportional to 8,102.72, 12,146.40 and 3,488.96

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Solution

The fourth proportional to 8,102.72, 12,146.40 and 3,488.96 is: 5,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.72 : 12,146.40 = 3,488.96 : x
  2. Step 2: Convert to fraction form
    8,102.72/12,146.40 = 3,488.96/x
  3. Step 3: Cross multiply
    8,102.72x = 12,146.40 × 3,488.96
  4. Step 4: Simplify right side
    8,102.72x = 42,378,303.74
  5. Step 5: Solve for x
    x = 42,378,303.74/8,102.72
  6. Step 6: Final answer
    x = 5,230.13

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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.