Home / 8,656.24-12,985.62-2,731.12

Finding the Fourth Proportional to 8,656.24, 12,985.62 and 2,731.12

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Solution

The fourth proportional to 8,656.24, 12,985.62 and 2,731.12 is: 4,097.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.24 : 12,985.62 = 2,731.12 : x
  2. Step 2: Convert to fraction form
    8,656.24/12,985.62 = 2,731.12/x
  3. Step 3: Cross multiply
    8,656.24x = 12,985.62 × 2,731.12
  4. Step 4: Simplify right side
    8,656.24x = 35,465,243.79
  5. Step 5: Solve for x
    x = 35,465,243.79/8,656.24
  6. Step 6: Final answer
    x = 4,097.07

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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.