Home / 13,079.18-19,606.80-5,680.97

Finding the Fourth Proportional to 13,079.18, 19,606.80 and 5,680.97

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Solution

The fourth proportional to 13,079.18, 19,606.80 and 5,680.97 is: 8,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.18 : 19,606.80 = 5,680.97 : x
  2. Step 2: Convert to fraction form
    13,079.18/19,606.80 = 5,680.97/x
  3. Step 3: Cross multiply
    13,079.18x = 19,606.80 × 5,680.97
  4. Step 4: Simplify right side
    13,079.18x = 111,385,544.56
  5. Step 5: Solve for x
    x = 111,385,544.56/13,079.18
  6. Step 6: Final answer
    x = 8,516.25

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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.