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Finding the Fourth Proportional to 14.50, 20 and 9.32

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Solution

The fourth proportional to 14.50, 20 and 9.32 is: 12.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.50 : 20 = 9.32 : x
  2. Step 2: Convert to fraction form
    14.50/20 = 9.32/x
  3. Step 3: Cross multiply
    14.50x = 20 × 9.32
  4. Step 4: Simplify right side
    14.50x = 186.40
  5. Step 5: Solve for x
    x = 186.40/14.50
  6. Step 6: Final answer
    x = 12.86

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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.