Home / 8,405.13-12,609.05-2,482.61

Finding the Fourth Proportional to 8,405.13, 12,609.05 and 2,482.61

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Solution

The fourth proportional to 8,405.13, 12,609.05 and 2,482.61 is: 3,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.13 : 12,609.05 = 2,482.61 : x
  2. Step 2: Convert to fraction form
    8,405.13/12,609.05 = 2,482.61/x
  3. Step 3: Cross multiply
    8,405.13x = 12,609.05 × 2,482.61
  4. Step 4: Simplify right side
    8,405.13x = 31,303,359.83
  5. Step 5: Solve for x
    x = 31,303,359.83/8,405.13
  6. Step 6: Final answer
    x = 3,724.32

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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.