Home / 8,084.79-12,127.16-2,538.11

Finding the Fourth Proportional to 8,084.79, 12,127.16 and 2,538.11

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Solution

The fourth proportional to 8,084.79, 12,127.16 and 2,538.11 is: 3,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.79 : 12,127.16 = 2,538.11 : x
  2. Step 2: Convert to fraction form
    8,084.79/12,127.16 = 2,538.11/x
  3. Step 3: Cross multiply
    8,084.79x = 12,127.16 × 2,538.11
  4. Step 4: Simplify right side
    8,084.79x = 30,780,066.07
  5. Step 5: Solve for x
    x = 30,780,066.07/8,084.79
  6. Step 6: Final answer
    x = 3,807.16

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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.