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Finding the Fourth Proportional to 17,863.40, 24,651.06 and 9,905.70

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Solution

The fourth proportional to 17,863.40, 24,651.06 and 9,905.70 is: 13,669.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,863.40 : 24,651.06 = 9,905.70 : x
  2. Step 2: Convert to fraction form
    17,863.40/24,651.06 = 9,905.70/x
  3. Step 3: Cross multiply
    17,863.40x = 24,651.06 × 9,905.70
  4. Step 4: Simplify right side
    17,863.40x = 244,186,005.04
  5. Step 5: Solve for x
    x = 244,186,005.04/17,863.40
  6. Step 6: Final answer
    x = 13,669.63

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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.