Home / 6,209.12-9,305.40-5,427.20

Finding the Fourth Proportional to 6,209.12, 9,305.40 and 5,427.20

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Solution

The fourth proportional to 6,209.12, 9,305.40 and 5,427.20 is: 8,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,209.12 : 9,305.40 = 5,427.20 : x
  2. Step 2: Convert to fraction form
    6,209.12/9,305.40 = 5,427.20/x
  3. Step 3: Cross multiply
    6,209.12x = 9,305.40 × 5,427.20
  4. Step 4: Simplify right side
    6,209.12x = 50,502,266.88
  5. Step 5: Solve for x
    x = 50,502,266.88/6,209.12
  6. Step 6: Final answer
    x = 8,133.56

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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.