Home / 11,398.50-17,188.89-11,242.56

Finding the Fourth Proportional to 11,398.50, 17,188.89 and 11,242.56

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Solution

The fourth proportional to 11,398.50, 17,188.89 and 11,242.56 is: 16,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.50 : 17,188.89 = 11,242.56 : x
  2. Step 2: Convert to fraction form
    11,398.50/17,188.89 = 11,242.56/x
  3. Step 3: Cross multiply
    11,398.50x = 17,188.89 × 11,242.56
  4. Step 4: Simplify right side
    11,398.50x = 193,247,127.16
  5. Step 5: Solve for x
    x = 193,247,127.16/11,398.50
  6. Step 6: Final answer
    x = 16,953.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.