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Finding the Fourth Proportional to 9,983.70, 14,910.71 and 9,387.54

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Solution

The fourth proportional to 9,983.70, 14,910.71 and 9,387.54 is: 14,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.70 : 14,910.71 = 9,387.54 : x
  2. Step 2: Convert to fraction form
    9,983.70/14,910.71 = 9,387.54/x
  3. Step 3: Cross multiply
    9,983.70x = 14,910.71 × 9,387.54
  4. Step 4: Simplify right side
    9,983.70x = 139,974,839.62
  5. Step 5: Solve for x
    x = 139,974,839.62/9,983.70
  6. Step 6: Final answer
    x = 14,020.34

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1.5x scale

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.