Home / 11,122.60-16,683.90-7,404.70

Finding the Fourth Proportional to 11,122.60, 16,683.90 and 7,404.70

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Solution

The fourth proportional to 11,122.60, 16,683.90 and 7,404.70 is: 11,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.60 : 16,683.90 = 7,404.70 : x
  2. Step 2: Convert to fraction form
    11,122.60/16,683.90 = 7,404.70/x
  3. Step 3: Cross multiply
    11,122.60x = 16,683.90 × 7,404.70
  4. Step 4: Simplify right side
    11,122.60x = 123,539,274.33
  5. Step 5: Solve for x
    x = 123,539,274.33/11,122.60
  6. Step 6: Final answer
    x = 11,107.05

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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.