Home / 11,938.60-17,901.75-5,359.15

Finding the Fourth Proportional to 11,938.60, 17,901.75 and 5,359.15

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Solution

The fourth proportional to 11,938.60, 17,901.75 and 5,359.15 is: 8,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.60 : 17,901.75 = 5,359.15 : x
  2. Step 2: Convert to fraction form
    11,938.60/17,901.75 = 5,359.15/x
  3. Step 3: Cross multiply
    11,938.60x = 17,901.75 × 5,359.15
  4. Step 4: Simplify right side
    11,938.60x = 95,938,118.76
  5. Step 5: Solve for x
    x = 95,938,118.76/11,938.60
  6. Step 6: Final answer
    x = 8,035.96

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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.