Home / 12,084.88-18,127.08-3,319.46

Finding the Fourth Proportional to 12,084.88, 18,127.08 and 3,319.46

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Solution

The fourth proportional to 12,084.88, 18,127.08 and 3,319.46 is: 4,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.88 : 18,127.08 = 3,319.46 : x
  2. Step 2: Convert to fraction form
    12,084.88/18,127.08 = 3,319.46/x
  3. Step 3: Cross multiply
    12,084.88x = 18,127.08 × 3,319.46
  4. Step 4: Simplify right side
    12,084.88x = 60,172,116.98
  5. Step 5: Solve for x
    x = 60,172,116.98/12,084.88
  6. Step 6: Final answer
    x = 4,979.12

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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.