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Finding the Fourth Proportional to 9.47, 14.28 and 9.29

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Solution

The fourth proportional to 9.47, 14.28 and 9.29 is: 14.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.47 : 14.28 = 9.29 : x
  2. Step 2: Convert to fraction form
    9.47/14.28 = 9.29/x
  3. Step 3: Cross multiply
    9.47x = 14.28 × 9.29
  4. Step 4: Simplify right side
    9.47x = 132.66
  5. Step 5: Solve for x
    x = 132.66/9.47
  6. Step 6: Final answer
    x = 14.01

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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.