Home / 11,938.56-17,911.20-4,148.16

Finding the Fourth Proportional to 11,938.56, 17,911.20 and 4,148.16

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Solution

The fourth proportional to 11,938.56, 17,911.20 and 4,148.16 is: 6,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.56 : 17,911.20 = 4,148.16 : x
  2. Step 2: Convert to fraction form
    11,938.56/17,911.20 = 4,148.16/x
  3. Step 3: Cross multiply
    11,938.56x = 17,911.20 × 4,148.16
  4. Step 4: Simplify right side
    11,938.56x = 74,298,523.39
  5. Step 5: Solve for x
    x = 74,298,523.39/11,938.56
  6. Step 6: Final answer
    x = 6,223.41

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1.5x scale

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.