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Finding the Fourth Proportional to 17,703.86, 26,555.31 and 5,391.86

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Solution

The fourth proportional to 17,703.86, 26,555.31 and 5,391.86 is: 8,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,703.86 : 26,555.31 = 5,391.86 : x
  2. Step 2: Convert to fraction form
    17,703.86/26,555.31 = 5,391.86/x
  3. Step 3: Cross multiply
    17,703.86x = 26,555.31 × 5,391.86
  4. Step 4: Simplify right side
    17,703.86x = 143,182,513.78
  5. Step 5: Solve for x
    x = 143,182,513.78/17,703.86
  6. Step 6: Final answer
    x = 8,087.64

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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.