Home / 11,451.60-17,177.40-9,993.60

Finding the Fourth Proportional to 11,451.60, 17,177.40 and 9,993.60

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Solution

The fourth proportional to 11,451.60, 17,177.40 and 9,993.60 is: 14,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.60 : 17,177.40 = 9,993.60 : x
  2. Step 2: Convert to fraction form
    11,451.60/17,177.40 = 9,993.60/x
  3. Step 3: Cross multiply
    11,451.60x = 17,177.40 × 9,993.60
  4. Step 4: Simplify right side
    11,451.60x = 171,664,064.64
  5. Step 5: Solve for x
    x = 171,664,064.64/11,451.60
  6. Step 6: Final answer
    x = 14,990.40

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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.