Home / 7,747.40-10,684.49-6,418.77

Finding the Fourth Proportional to 7,747.40, 10,684.49 and 6,418.77

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Solution

The fourth proportional to 7,747.40, 10,684.49 and 6,418.77 is: 8,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.40 : 10,684.49 = 6,418.77 : x
  2. Step 2: Convert to fraction form
    7,747.40/10,684.49 = 6,418.77/x
  3. Step 3: Cross multiply
    7,747.40x = 10,684.49 × 6,418.77
  4. Step 4: Simplify right side
    7,747.40x = 68,581,251.78
  5. Step 5: Solve for x
    x = 68,581,251.78/7,747.40
  6. Step 6: Final answer
    x = 8,852.17

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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.