Home / 8,210.08-12,321.12-3,281.14

Finding the Fourth Proportional to 8,210.08, 12,321.12 and 3,281.14

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Solution

The fourth proportional to 8,210.08, 12,321.12 and 3,281.14 is: 4,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.08 : 12,321.12 = 3,281.14 : x
  2. Step 2: Convert to fraction form
    8,210.08/12,321.12 = 3,281.14/x
  3. Step 3: Cross multiply
    8,210.08x = 12,321.12 × 3,281.14
  4. Step 4: Simplify right side
    8,210.08x = 40,427,319.68
  5. Step 5: Solve for x
    x = 40,427,319.68/8,210.08
  6. Step 6: Final answer
    x = 4,924.11

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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.