Home / 11,679.57-17,490.87-6,137.55

Finding the Fourth Proportional to 11,679.57, 17,490.87 and 6,137.55

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Solution

The fourth proportional to 11,679.57, 17,490.87 and 6,137.55 is: 9,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.57 : 17,490.87 = 6,137.55 : x
  2. Step 2: Convert to fraction form
    11,679.57/17,490.87 = 6,137.55/x
  3. Step 3: Cross multiply
    11,679.57x = 17,490.87 × 6,137.55
  4. Step 4: Simplify right side
    11,679.57x = 107,351,089.17
  5. Step 5: Solve for x
    x = 107,351,089.17/11,679.57
  6. Step 6: Final answer
    x = 9,191.36

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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.