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Finding the Fourth Proportional to 9,642, 14,463 and 3,486

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Solution

The fourth proportional to 9,642, 14,463 and 3,486 is: 5,229

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642 : 14,463 = 3,486 : x
  2. Step 2: Convert to fraction form
    9,642/14,463 = 3,486/x
  3. Step 3: Cross multiply
    9,642x = 14,463 × 3,486
  4. Step 4: Simplify right side
    9,642x = 50,418,018
  5. Step 5: Solve for x
    x = 50,418,018/9,642
  6. Step 6: Final answer
    x = 5,229

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.