Home / 11,172.61-15,418.38-6,137.35

Finding the Fourth Proportional to 11,172.61, 15,418.38 and 6,137.35

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Solution

The fourth proportional to 11,172.61, 15,418.38 and 6,137.35 is: 8,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.61 : 15,418.38 = 6,137.35 : x
  2. Step 2: Convert to fraction form
    11,172.61/15,418.38 = 6,137.35/x
  3. Step 3: Cross multiply
    11,172.61x = 15,418.38 × 6,137.35
  4. Step 4: Simplify right side
    11,172.61x = 94,627,994.49
  5. Step 5: Solve for x
    x = 94,627,994.49/11,172.61
  6. Step 6: Final answer
    x = 8,469.64

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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.