Home / 11,428.35-17,139.24-4,407.81

Finding the Fourth Proportional to 11,428.35, 17,139.24 and 4,407.81

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Solution

The fourth proportional to 11,428.35, 17,139.24 and 4,407.81 is: 6,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.35 : 17,139.24 = 4,407.81 : x
  2. Step 2: Convert to fraction form
    11,428.35/17,139.24 = 4,407.81/x
  3. Step 3: Cross multiply
    11,428.35x = 17,139.24 × 4,407.81
  4. Step 4: Simplify right side
    11,428.35x = 75,546,513.46
  5. Step 5: Solve for x
    x = 75,546,513.46/11,428.35
  6. Step 6: Final answer
    x = 6,610.45

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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.