Home / 13,249.06-18,264.44-9,257.78

Finding the Fourth Proportional to 13,249.06, 18,264.44 and 9,257.78

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Solution

The fourth proportional to 13,249.06, 18,264.44 and 9,257.78 is: 12,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.06 : 18,264.44 = 9,257.78 : x
  2. Step 2: Convert to fraction form
    13,249.06/18,264.44 = 9,257.78/x
  3. Step 3: Cross multiply
    13,249.06x = 18,264.44 × 9,257.78
  4. Step 4: Simplify right side
    13,249.06x = 169,088,236.15
  5. Step 5: Solve for x
    x = 169,088,236.15/13,249.06
  6. Step 6: Final answer
    x = 12,762.28

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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.