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Finding the Fourth Proportional to 17,953.65, 26,913.87 and 9,169.20

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Solution

The fourth proportional to 17,953.65, 26,913.87 and 9,169.20 is: 13,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.65 : 26,913.87 = 9,169.20 : x
  2. Step 2: Convert to fraction form
    17,953.65/26,913.87 = 9,169.20/x
  3. Step 3: Cross multiply
    17,953.65x = 26,913.87 × 9,169.20
  4. Step 4: Simplify right side
    17,953.65x = 246,778,656.80
  5. Step 5: Solve for x
    x = 246,778,656.80/17,953.65
  6. Step 6: Final answer
    x = 13,745.32

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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.