Home / 9,236.40-12,745.30-5,257.28

Finding the Fourth Proportional to 9,236.40, 12,745.30 and 5,257.28

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Solution

The fourth proportional to 9,236.40, 12,745.30 and 5,257.28 is: 7,254.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,236.40 : 12,745.30 = 5,257.28 : x
  2. Step 2: Convert to fraction form
    9,236.40/12,745.30 = 5,257.28/x
  3. Step 3: Cross multiply
    9,236.40x = 12,745.30 × 5,257.28
  4. Step 4: Simplify right side
    9,236.40x = 67,005,610.78
  5. Step 5: Solve for x
    x = 67,005,610.78/9,236.40
  6. Step 6: Final answer
    x = 7,254.52

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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.