Home / 10,540.13-15,811.13-2,749.01

Finding the Fourth Proportional to 10,540.13, 15,811.13 and 2,749.01

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Solution

The fourth proportional to 10,540.13, 15,811.13 and 2,749.01 is: 4,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.13 : 15,811.13 = 2,749.01 : x
  2. Step 2: Convert to fraction form
    10,540.13/15,811.13 = 2,749.01/x
  3. Step 3: Cross multiply
    10,540.13x = 15,811.13 × 2,749.01
  4. Step 4: Simplify right side
    10,540.13x = 43,464,940.74
  5. Step 5: Solve for x
    x = 43,464,940.74/10,540.13
  6. Step 6: Final answer
    x = 4,123.76

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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.