Home / 11,103.46-15,331.60-6,860.68

Finding the Fourth Proportional to 11,103.46, 15,331.60 and 6,860.68

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Solution

The fourth proportional to 11,103.46, 15,331.60 and 6,860.68 is: 9,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.46 : 15,331.60 = 6,860.68 : x
  2. Step 2: Convert to fraction form
    11,103.46/15,331.60 = 6,860.68/x
  3. Step 3: Cross multiply
    11,103.46x = 15,331.60 × 6,860.68
  4. Step 4: Simplify right side
    11,103.46x = 105,185,201.49
  5. Step 5: Solve for x
    x = 105,185,201.49/11,103.46
  6. Step 6: Final answer
    x = 9,473.19

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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.