Home / 12,084.12-18,125.98-3,318.71

Finding the Fourth Proportional to 12,084.12, 18,125.98 and 3,318.71

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Solution

The fourth proportional to 12,084.12, 18,125.98 and 3,318.71 is: 4,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.12 : 18,125.98 = 3,318.71 : x
  2. Step 2: Convert to fraction form
    12,084.12/18,125.98 = 3,318.71/x
  3. Step 3: Cross multiply
    12,084.12x = 18,125.98 × 3,318.71
  4. Step 4: Simplify right side
    12,084.12x = 60,154,772.16
  5. Step 5: Solve for x
    x = 60,154,772.16/12,084.12
  6. Step 6: Final answer
    x = 4,978.00

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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.