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Finding the Fourth Proportional to 17,778.52, 26,684.52 and 9,019.72

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Solution

The fourth proportional to 17,778.52, 26,684.52 and 9,019.72 is: 13,538.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778.52 : 26,684.52 = 9,019.72 : x
  2. Step 2: Convert to fraction form
    17,778.52/26,684.52 = 9,019.72/x
  3. Step 3: Cross multiply
    17,778.52x = 26,684.52 × 9,019.72
  4. Step 4: Simplify right side
    17,778.52x = 240,686,898.73
  5. Step 5: Solve for x
    x = 240,686,898.73/17,778.52
  6. Step 6: Final answer
    x = 13,538.07

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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.