Home / 6,135.60-9,181.80-5,617.20

Finding the Fourth Proportional to 6,135.60, 9,181.80 and 5,617.20

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Solution

The fourth proportional to 6,135.60, 9,181.80 and 5,617.20 is: 8,406.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.60 : 9,181.80 = 5,617.20 : x
  2. Step 2: Convert to fraction form
    6,135.60/9,181.80 = 5,617.20/x
  3. Step 3: Cross multiply
    6,135.60x = 9,181.80 × 5,617.20
  4. Step 4: Simplify right side
    6,135.60x = 51,576,006.96
  5. Step 5: Solve for x
    x = 51,576,006.96/6,135.60
  6. Step 6: Final answer
    x = 8,406.02

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1.5x scale

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.