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Finding the Fourth Proportional to 17,385.36, 26,019.72 and 10,788.72

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Solution

The fourth proportional to 17,385.36, 26,019.72 and 10,788.72 is: 16,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.36 : 26,019.72 = 10,788.72 : x
  2. Step 2: Convert to fraction form
    17,385.36/26,019.72 = 10,788.72/x
  3. Step 3: Cross multiply
    17,385.36x = 26,019.72 × 10,788.72
  4. Step 4: Simplify right side
    17,385.36x = 280,719,473.56
  5. Step 5: Solve for x
    x = 280,719,473.56/17,385.36
  6. Step 6: Final answer
    x = 16,146.89

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1.5x scale

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.