Home / 6,299.12-9,399.46-5,643.20

Finding the Fourth Proportional to 6,299.12, 9,399.46 and 5,643.20

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Solution

The fourth proportional to 6,299.12, 9,399.46 and 5,643.20 is: 8,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,299.12 : 9,399.46 = 5,643.20 : x
  2. Step 2: Convert to fraction form
    6,299.12/9,399.46 = 5,643.20/x
  3. Step 3: Cross multiply
    6,299.12x = 9,399.46 × 5,643.20
  4. Step 4: Simplify right side
    6,299.12x = 53,043,032.67
  5. Step 5: Solve for x
    x = 53,043,032.67/6,299.12
  6. Step 6: Final answer
    x = 8,420.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.