Home / 11,385.23-17,083.65-7,679.69

Finding the Fourth Proportional to 11,385.23, 17,083.65 and 7,679.69

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Solution

The fourth proportional to 11,385.23, 17,083.65 and 7,679.69 is: 11,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.23 : 17,083.65 = 7,679.69 : x
  2. Step 2: Convert to fraction form
    11,385.23/17,083.65 = 7,679.69/x
  3. Step 3: Cross multiply
    11,385.23x = 17,083.65 × 7,679.69
  4. Step 4: Simplify right side
    11,385.23x = 131,197,239.61
  5. Step 5: Solve for x
    x = 131,197,239.61/11,385.23
  6. Step 6: Final answer
    x = 11,523.46

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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.