Home / 6,647.21-9,173.36-3,815.10

Finding the Fourth Proportional to 6,647.21, 9,173.36 and 3,815.10

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Solution

The fourth proportional to 6,647.21, 9,173.36 and 3,815.10 is: 5,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.21 : 9,173.36 = 3,815.10 : x
  2. Step 2: Convert to fraction form
    6,647.21/9,173.36 = 3,815.10/x
  3. Step 3: Cross multiply
    6,647.21x = 9,173.36 × 3,815.10
  4. Step 4: Simplify right side
    6,647.21x = 34,997,300.64
  5. Step 5: Solve for x
    x = 34,997,300.64/6,647.21
  6. Step 6: Final answer
    x = 5,264.96

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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.