Home / 10,540.72-15,811.08-2,749.47

Finding the Fourth Proportional to 10,540.72, 15,811.08 and 2,749.47

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Solution

The fourth proportional to 10,540.72, 15,811.08 and 2,749.47 is: 4,124.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.72 : 15,811.08 = 2,749.47 : x
  2. Step 2: Convert to fraction form
    10,540.72/15,811.08 = 2,749.47/x
  3. Step 3: Cross multiply
    10,540.72x = 15,811.08 × 2,749.47
  4. Step 4: Simplify right side
    10,540.72x = 43,472,090.13
  5. Step 5: Solve for x
    x = 43,472,090.13/10,540.72
  6. Step 6: Final answer
    x = 4,124.21

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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.