Home / 11,027.12-16,540.68-6,407.60

Finding the Fourth Proportional to 11,027.12, 16,540.68 and 6,407.60

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Solution

The fourth proportional to 11,027.12, 16,540.68 and 6,407.60 is: 9,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.12 : 16,540.68 = 6,407.60 : x
  2. Step 2: Convert to fraction form
    11,027.12/16,540.68 = 6,407.60/x
  3. Step 3: Cross multiply
    11,027.12x = 16,540.68 × 6,407.60
  4. Step 4: Simplify right side
    11,027.12x = 105,986,061.17
  5. Step 5: Solve for x
    x = 105,986,061.17/11,027.12
  6. Step 6: Final answer
    x = 9,611.40

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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.