Home / 10,749.76-16,117.32-5,471.80

Finding the Fourth Proportional to 10,749.76, 16,117.32 and 5,471.80

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Solution

The fourth proportional to 10,749.76, 16,117.32 and 5,471.80 is: 8,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.76 : 16,117.32 = 5,471.80 : x
  2. Step 2: Convert to fraction form
    10,749.76/16,117.32 = 5,471.80/x
  3. Step 3: Cross multiply
    10,749.76x = 16,117.32 × 5,471.80
  4. Step 4: Simplify right side
    10,749.76x = 88,190,751.58
  5. Step 5: Solve for x
    x = 88,190,751.58/10,749.76
  6. Step 6: Final answer
    x = 8,203.97

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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.