Home / 7,766.52-10,712.25-4,778.43

Finding the Fourth Proportional to 7,766.52, 10,712.25 and 4,778.43

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Solution

The fourth proportional to 7,766.52, 10,712.25 and 4,778.43 is: 6,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.52 : 10,712.25 = 4,778.43 : x
  2. Step 2: Convert to fraction form
    7,766.52/10,712.25 = 4,778.43/x
  3. Step 3: Cross multiply
    7,766.52x = 10,712.25 × 4,778.43
  4. Step 4: Simplify right side
    7,766.52x = 51,187,736.77
  5. Step 5: Solve for x
    x = 51,187,736.77/7,766.52
  6. Step 6: Final answer
    x = 6,590.82

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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.