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Finding the Fourth Proportional to 9.83, 14.62 and 9.53

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Solution

The fourth proportional to 9.83, 14.62 and 9.53 is: 14.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.83 : 14.62 = 9.53 : x
  2. Step 2: Convert to fraction form
    9.83/14.62 = 9.53/x
  3. Step 3: Cross multiply
    9.83x = 14.62 × 9.53
  4. Step 4: Simplify right side
    9.83x = 139.33
  5. Step 5: Solve for x
    x = 139.33/9.83
  6. Step 6: Final answer
    x = 14.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.