Home / 10,543.92-15,815.84-2,752.72

Finding the Fourth Proportional to 10,543.92, 15,815.84 and 2,752.72

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Solution

The fourth proportional to 10,543.92, 15,815.84 and 2,752.72 is: 4,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.92 : 15,815.84 = 2,752.72 : x
  2. Step 2: Convert to fraction form
    10,543.92/15,815.84 = 2,752.72/x
  3. Step 3: Cross multiply
    10,543.92x = 15,815.84 × 2,752.72
  4. Step 4: Simplify right side
    10,543.92x = 43,536,579.08
  5. Step 5: Solve for x
    x = 43,536,579.08/10,543.92
  6. Step 6: Final answer
    x = 4,129.07

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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.