Home / 10,512.84-15,769.20-3,117.36

Finding the Fourth Proportional to 10,512.84, 15,769.20 and 3,117.36

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Solution

The fourth proportional to 10,512.84, 15,769.20 and 3,117.36 is: 4,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.84 : 15,769.20 = 3,117.36 : x
  2. Step 2: Convert to fraction form
    10,512.84/15,769.20 = 3,117.36/x
  3. Step 3: Cross multiply
    10,512.84x = 15,769.20 × 3,117.36
  4. Step 4: Simplify right side
    10,512.84x = 49,158,273.31
  5. Step 5: Solve for x
    x = 49,158,273.31/10,512.84
  6. Step 6: Final answer
    x = 4,676.02

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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.