Home / 6,473.40-9,719.10-4,147.80

Finding the Fourth Proportional to 6,473.40, 9,719.10 and 4,147.80

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Solution

The fourth proportional to 6,473.40, 9,719.10 and 4,147.80 is: 6,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.40 : 9,719.10 = 4,147.80 : x
  2. Step 2: Convert to fraction form
    6,473.40/9,719.10 = 4,147.80/x
  3. Step 3: Cross multiply
    6,473.40x = 9,719.10 × 4,147.80
  4. Step 4: Simplify right side
    6,473.40x = 40,312,882.98
  5. Step 5: Solve for x
    x = 40,312,882.98/6,473.40
  6. Step 6: Final answer
    x = 6,227.47

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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.