Home / 17,771.45-26,647.38-7,238.78

Finding the Fourth Proportional to 17,771.45, 26,647.38 and 7,238.78

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Solution

The fourth proportional to 17,771.45, 26,647.38 and 7,238.78 is: 10,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,771.45 : 26,647.38 = 7,238.78 : x
  2. Step 2: Convert to fraction form
    17,771.45/26,647.38 = 7,238.78/x
  3. Step 3: Cross multiply
    17,771.45x = 26,647.38 × 7,238.78
  4. Step 4: Simplify right side
    17,771.45x = 192,894,521.40
  5. Step 5: Solve for x
    x = 192,894,521.40/17,771.45
  6. Step 6: Final answer
    x = 10,854.18

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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.