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Finding the Fourth Proportional to 11,191.61, 16,822.28 and 7,058.18

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Solution

The fourth proportional to 11,191.61, 16,822.28 and 7,058.18 is: 10,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.61 : 16,822.28 = 7,058.18 : x
  2. Step 2: Convert to fraction form
    11,191.61/16,822.28 = 7,058.18/x
  3. Step 3: Cross multiply
    11,191.61x = 16,822.28 × 7,058.18
  4. Step 4: Simplify right side
    11,191.61x = 118,734,739.95
  5. Step 5: Solve for x
    x = 118,734,739.95/11,191.61
  6. Step 6: Final answer
    x = 10,609.26

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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.