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Finding the Fourth Proportional to 9.30, 14 and 8.46

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Solution

The fourth proportional to 9.30, 14 and 8.46 is: 12.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.30 : 14 = 8.46 : x
  2. Step 2: Convert to fraction form
    9.30/14 = 8.46/x
  3. Step 3: Cross multiply
    9.30x = 14 × 8.46
  4. Step 4: Simplify right side
    9.30x = 118.44
  5. Step 5: Solve for x
    x = 118.44/9.30
  6. Step 6: Final answer
    x = 12.74

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.