Home / 8,579.43-12,869.01-2,656.17

Finding the Fourth Proportional to 8,579.43, 12,869.01 and 2,656.17

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Solution

The fourth proportional to 8,579.43, 12,869.01 and 2,656.17 is: 3,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.43 : 12,869.01 = 2,656.17 : x
  2. Step 2: Convert to fraction form
    8,579.43/12,869.01 = 2,656.17/x
  3. Step 3: Cross multiply
    8,579.43x = 12,869.01 × 2,656.17
  4. Step 4: Simplify right side
    8,579.43x = 34,182,278.29
  5. Step 5: Solve for x
    x = 34,182,278.29/8,579.43
  6. Step 6: Final answer
    x = 3,984.21

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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.