Home / 8,386.43-12,579.35-3,452.34

Finding the Fourth Proportional to 8,386.43, 12,579.35 and 3,452.34

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Solution

The fourth proportional to 8,386.43, 12,579.35 and 3,452.34 is: 5,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.43 : 12,579.35 = 3,452.34 : x
  2. Step 2: Convert to fraction form
    8,386.43/12,579.35 = 3,452.34/x
  3. Step 3: Cross multiply
    8,386.43x = 12,579.35 × 3,452.34
  4. Step 4: Simplify right side
    8,386.43x = 43,428,201.81
  5. Step 5: Solve for x
    x = 43,428,201.81/8,386.43
  6. Step 6: Final answer
    x = 5,178.39

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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.