Home / 11,938.40-17,903.36-3,502.55

Finding the Fourth Proportional to 11,938.40, 17,903.36 and 3,502.55

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Solution

The fourth proportional to 11,938.40, 17,903.36 and 3,502.55 is: 5,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.40 : 17,903.36 = 3,502.55 : x
  2. Step 2: Convert to fraction form
    11,938.40/17,903.36 = 3,502.55/x
  3. Step 3: Cross multiply
    11,938.40x = 17,903.36 × 3,502.55
  4. Step 4: Simplify right side
    11,938.40x = 62,707,306.54
  5. Step 5: Solve for x
    x = 62,707,306.54/11,938.40
  6. Step 6: Final answer
    x = 5,252.57

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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.