Home / 13,079.35-18,049.46-7,415.19

Finding the Fourth Proportional to 13,079.35, 18,049.46 and 7,415.19

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Solution

The fourth proportional to 13,079.35, 18,049.46 and 7,415.19 is: 10,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.35 : 18,049.46 = 7,415.19 : x
  2. Step 2: Convert to fraction form
    13,079.35/18,049.46 = 7,415.19/x
  3. Step 3: Cross multiply
    13,079.35x = 18,049.46 × 7,415.19
  4. Step 4: Simplify right side
    13,079.35x = 133,840,175.30
  5. Step 5: Solve for x
    x = 133,840,175.30/13,079.35
  6. Step 6: Final answer
    x = 10,232.94

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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.