Home / 8,845.78-13,257.72-7,752.28

Finding the Fourth Proportional to 8,845.78, 13,257.72 and 7,752.28

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Solution

The fourth proportional to 8,845.78, 13,257.72 and 7,752.28 is: 11,618.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.78 : 13,257.72 = 7,752.28 : x
  2. Step 2: Convert to fraction form
    8,845.78/13,257.72 = 7,752.28/x
  3. Step 3: Cross multiply
    8,845.78x = 13,257.72 × 7,752.28
  4. Step 4: Simplify right side
    8,845.78x = 102,777,557.60
  5. Step 5: Solve for x
    x = 102,777,557.60/8,845.78
  6. Step 6: Final answer
    x = 11,618.82

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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.