Home / 8,386.43-12,579.63-2,543.04

Finding the Fourth Proportional to 8,386.43, 12,579.63 and 2,543.04

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Solution

The fourth proportional to 8,386.43, 12,579.63 and 2,543.04 is: 3,814.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.43 : 12,579.63 = 2,543.04 : x
  2. Step 2: Convert to fraction form
    8,386.43/12,579.63 = 2,543.04/x
  3. Step 3: Cross multiply
    8,386.43x = 12,579.63 × 2,543.04
  4. Step 4: Simplify right side
    8,386.43x = 31,990,502.28
  5. Step 5: Solve for x
    x = 31,990,502.28/8,386.43
  6. Step 6: Final answer
    x = 3,814.56

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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.