Home / 6,647.18-9,173.20-3,814.78

Finding the Fourth Proportional to 6,647.18, 9,173.20 and 3,814.78

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Solution

The fourth proportional to 6,647.18, 9,173.20 and 3,814.78 is: 5,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.18 : 9,173.20 = 3,814.78 : x
  2. Step 2: Convert to fraction form
    6,647.18/9,173.20 = 3,814.78/x
  3. Step 3: Cross multiply
    6,647.18x = 9,173.20 × 3,814.78
  4. Step 4: Simplify right side
    6,647.18x = 34,993,739.90
  5. Step 5: Solve for x
    x = 34,993,739.90/6,647.18
  6. Step 6: Final answer
    x = 5,264.45

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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.