Home / 8,084.65-12,127.49-2,538.21

Finding the Fourth Proportional to 8,084.65, 12,127.49 and 2,538.21

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Solution

The fourth proportional to 8,084.65, 12,127.49 and 2,538.21 is: 3,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.65 : 12,127.49 = 2,538.21 : x
  2. Step 2: Convert to fraction form
    8,084.65/12,127.49 = 2,538.21/x
  3. Step 3: Cross multiply
    8,084.65x = 12,127.49 × 2,538.21
  4. Step 4: Simplify right side
    8,084.65x = 30,782,116.39
  5. Step 5: Solve for x
    x = 30,782,116.39/8,084.65
  6. Step 6: Final answer
    x = 3,807.48

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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.