Home / 7,712.78-11,558.82-4,007.30

Finding the Fourth Proportional to 7,712.78, 11,558.82 and 4,007.30

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Solution

The fourth proportional to 7,712.78, 11,558.82 and 4,007.30 is: 6,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.78 : 11,558.82 = 4,007.30 : x
  2. Step 2: Convert to fraction form
    7,712.78/11,558.82 = 4,007.30/x
  3. Step 3: Cross multiply
    7,712.78x = 11,558.82 × 4,007.30
  4. Step 4: Simplify right side
    7,712.78x = 46,319,659.39
  5. Step 5: Solve for x
    x = 46,319,659.39/7,712.78
  6. Step 6: Final answer
    x = 6,005.57

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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.