Home / 7,616.70-11,415.32-6,625.41

Finding the Fourth Proportional to 7,616.70, 11,415.32 and 6,625.41

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Solution

The fourth proportional to 7,616.70, 11,415.32 and 6,625.41 is: 9,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.70 : 11,415.32 = 6,625.41 : x
  2. Step 2: Convert to fraction form
    7,616.70/11,415.32 = 6,625.41/x
  3. Step 3: Cross multiply
    7,616.70x = 11,415.32 × 6,625.41
  4. Step 4: Simplify right side
    7,616.70x = 75,631,142.15
  5. Step 5: Solve for x
    x = 75,631,142.15/7,616.70
  6. Step 6: Final answer
    x = 9,929.65

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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.