Home / 11,172.98-15,418.86-6,137.65

Finding the Fourth Proportional to 11,172.98, 15,418.86 and 6,137.65

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Solution

The fourth proportional to 11,172.98, 15,418.86 and 6,137.65 is: 8,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.98 : 15,418.86 = 6,137.65 : x
  2. Step 2: Convert to fraction form
    11,172.98/15,418.86 = 6,137.65/x
  3. Step 3: Cross multiply
    11,172.98x = 15,418.86 × 6,137.65
  4. Step 4: Simplify right side
    11,172.98x = 94,635,488.98
  5. Step 5: Solve for x
    x = 94,635,488.98/11,172.98
  6. Step 6: Final answer
    x = 8,470.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.