Home / 13,216.66-18,240.15-7,249.56

Finding the Fourth Proportional to 13,216.66, 18,240.15 and 7,249.56

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Solution

The fourth proportional to 13,216.66, 18,240.15 and 7,249.56 is: 10,005.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.66 : 18,240.15 = 7,249.56 : x
  2. Step 2: Convert to fraction form
    13,216.66/18,240.15 = 7,249.56/x
  3. Step 3: Cross multiply
    13,216.66x = 18,240.15 × 7,249.56
  4. Step 4: Simplify right side
    13,216.66x = 132,233,118.29
  5. Step 5: Solve for x
    x = 132,233,118.29/13,216.66
  6. Step 6: Final answer
    x = 10,005.04

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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.