Home / 13,079.66-19,621.84-4,771.34

Finding the Fourth Proportional to 13,079.66, 19,621.84 and 4,771.34

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Solution

The fourth proportional to 13,079.66, 19,621.84 and 4,771.34 is: 7,157.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.66 : 19,621.84 = 4,771.34 : x
  2. Step 2: Convert to fraction form
    13,079.66/19,621.84 = 4,771.34/x
  3. Step 3: Cross multiply
    13,079.66x = 19,621.84 × 4,771.34
  4. Step 4: Simplify right side
    13,079.66x = 93,622,470.07
  5. Step 5: Solve for x
    x = 93,622,470.07/13,079.66
  6. Step 6: Final answer
    x = 7,157.87

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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.