Home / 8,229.40-12,346.38-2,386.60

Finding the Fourth Proportional to 8,229.40, 12,346.38 and 2,386.60

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Solution

The fourth proportional to 8,229.40, 12,346.38 and 2,386.60 is: 3,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.40 : 12,346.38 = 2,386.60 : x
  2. Step 2: Convert to fraction form
    8,229.40/12,346.38 = 2,386.60/x
  3. Step 3: Cross multiply
    8,229.40x = 12,346.38 × 2,386.60
  4. Step 4: Simplify right side
    8,229.40x = 29,465,870.51
  5. Step 5: Solve for x
    x = 29,465,870.51/8,229.40
  6. Step 6: Final answer
    x = 3,580.56

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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.