Home / 8,656.07-12,975.89-2,808.56

Finding the Fourth Proportional to 8,656.07, 12,975.89 and 2,808.56

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Solution

The fourth proportional to 8,656.07, 12,975.89 and 2,808.56 is: 4,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.07 : 12,975.89 = 2,808.56 : x
  2. Step 2: Convert to fraction form
    8,656.07/12,975.89 = 2,808.56/x
  3. Step 3: Cross multiply
    8,656.07x = 12,975.89 × 2,808.56
  4. Step 4: Simplify right side
    8,656.07x = 36,443,584.02
  5. Step 5: Solve for x
    x = 36,443,584.02/8,656.07
  6. Step 6: Final answer
    x = 4,210.18

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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.