Home / 12,084.76-18,127.10-3,319.68

Finding the Fourth Proportional to 12,084.76, 18,127.10 and 3,319.68

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Solution

The fourth proportional to 12,084.76, 18,127.10 and 3,319.68 is: 4,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.76 : 18,127.10 = 3,319.68 : x
  2. Step 2: Convert to fraction form
    12,084.76/18,127.10 = 3,319.68/x
  3. Step 3: Cross multiply
    12,084.76x = 18,127.10 × 3,319.68
  4. Step 4: Simplify right side
    12,084.76x = 60,176,171.33
  5. Step 5: Solve for x
    x = 60,176,171.33/12,084.76
  6. Step 6: Final answer
    x = 4,979.51

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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.