Home / 6,719.30-10,080.30-5,631.20

Finding the Fourth Proportional to 6,719.30, 10,080.30 and 5,631.20

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Solution

The fourth proportional to 6,719.30, 10,080.30 and 5,631.20 is: 8,447.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.30 : 10,080.30 = 5,631.20 : x
  2. Step 2: Convert to fraction form
    6,719.30/10,080.30 = 5,631.20/x
  3. Step 3: Cross multiply
    6,719.30x = 10,080.30 × 5,631.20
  4. Step 4: Simplify right side
    6,719.30x = 56,764,185.36
  5. Step 5: Solve for x
    x = 56,764,185.36/6,719.30
  6. Step 6: Final answer
    x = 8,447.93

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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.