Home / 6,909.12-9,534.60-3,765.28

Finding the Fourth Proportional to 6,909.12, 9,534.60 and 3,765.28

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Solution

The fourth proportional to 6,909.12, 9,534.60 and 3,765.28 is: 5,196.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.12 : 9,534.60 = 3,765.28 : x
  2. Step 2: Convert to fraction form
    6,909.12/9,534.60 = 3,765.28/x
  3. Step 3: Cross multiply
    6,909.12x = 9,534.60 × 3,765.28
  4. Step 4: Simplify right side
    6,909.12x = 35,900,438.69
  5. Step 5: Solve for x
    x = 35,900,438.69/6,909.12
  6. Step 6: Final answer
    x = 5,196.09

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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.