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Finding the Fourth Proportional to 13.24, 18.23 and 10.77

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Solution

The fourth proportional to 13.24, 18.23 and 10.77 is: 14.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.24 : 18.23 = 10.77 : x
  2. Step 2: Convert to fraction form
    13.24/18.23 = 10.77/x
  3. Step 3: Cross multiply
    13.24x = 18.23 × 10.77
  4. Step 4: Simplify right side
    13.24x = 196.19
  5. Step 5: Solve for x
    x = 196.19/13.24
  6. Step 6: Final answer
    x = 14.82

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Find fourth proportional to 6.62, 9.11 and 5.38
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.