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Finding the Fourth Proportional to 10.93, 16.53 and 10.69

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Solution

The fourth proportional to 10.93, 16.53 and 10.69 is: 16.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.93 : 16.53 = 10.69 : x
  2. Step 2: Convert to fraction form
    10.93/16.53 = 10.69/x
  3. Step 3: Cross multiply
    10.93x = 16.53 × 10.69
  4. Step 4: Simplify right side
    10.93x = 176.71
  5. Step 5: Solve for x
    x = 176.71/10.93
  6. Step 6: Final answer
    x = 16.17

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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.