Home / 26,140.88-39,211.50-6,419.60

Finding the Fourth Proportional to 26,140.88, 39,211.50 and 6,419.60

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Solution

The fourth proportional to 26,140.88, 39,211.50 and 6,419.60 is: 9,629.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,140.88 : 39,211.50 = 6,419.60 : x
  2. Step 2: Convert to fraction form
    26,140.88/39,211.50 = 6,419.60/x
  3. Step 3: Cross multiply
    26,140.88x = 39,211.50 × 6,419.60
  4. Step 4: Simplify right side
    26,140.88x = 251,722,145.40
  5. Step 5: Solve for x
    x = 251,722,145.40/26,140.88
  6. Step 6: Final answer
    x = 9,629.44

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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.