Home / 8,629.96-12,946.56-2,788.24

Finding the Fourth Proportional to 8,629.96, 12,946.56 and 2,788.24

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Solution

The fourth proportional to 8,629.96, 12,946.56 and 2,788.24 is: 4,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.96 : 12,946.56 = 2,788.24 : x
  2. Step 2: Convert to fraction form
    8,629.96/12,946.56 = 2,788.24/x
  3. Step 3: Cross multiply
    8,629.96x = 12,946.56 × 2,788.24
  4. Step 4: Simplify right side
    8,629.96x = 36,098,116.45
  5. Step 5: Solve for x
    x = 36,098,116.45/8,629.96
  6. Step 6: Final answer
    x = 4,182.88

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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.