Home / 10,512.72-15,770.52-4,669.20

Finding the Fourth Proportional to 10,512.72, 15,770.52 and 4,669.20

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Solution

The fourth proportional to 10,512.72, 15,770.52 and 4,669.20 is: 7,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.72 : 15,770.52 = 4,669.20 : x
  2. Step 2: Convert to fraction form
    10,512.72/15,770.52 = 4,669.20/x
  3. Step 3: Cross multiply
    10,512.72x = 15,770.52 × 4,669.20
  4. Step 4: Simplify right side
    10,512.72x = 73,635,711.98
  5. Step 5: Solve for x
    x = 73,635,711.98/10,512.72
  6. Step 6: Final answer
    x = 7,004.44

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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.