Home / 8,579.51-12,866.53-2,734.75

Finding the Fourth Proportional to 8,579.51, 12,866.53 and 2,734.75

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Solution

The fourth proportional to 8,579.51, 12,866.53 and 2,734.75 is: 4,101.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.51 : 12,866.53 = 2,734.75 : x
  2. Step 2: Convert to fraction form
    8,579.51/12,866.53 = 2,734.75/x
  3. Step 3: Cross multiply
    8,579.51x = 12,866.53 × 2,734.75
  4. Step 4: Simplify right side
    8,579.51x = 35,186,742.92
  5. Step 5: Solve for x
    x = 35,186,742.92/8,579.51
  6. Step 6: Final answer
    x = 4,101.25

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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.