Home / 26,120.40-39,180.60-7,652.40

Finding the Fourth Proportional to 26,120.40, 39,180.60 and 7,652.40

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Solution

The fourth proportional to 26,120.40, 39,180.60 and 7,652.40 is: 11,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.40 : 39,180.60 = 7,652.40 : x
  2. Step 2: Convert to fraction form
    26,120.40/39,180.60 = 7,652.40/x
  3. Step 3: Cross multiply
    26,120.40x = 39,180.60 × 7,652.40
  4. Step 4: Simplify right side
    26,120.40x = 299,825,623.44
  5. Step 5: Solve for x
    x = 299,825,623.44/26,120.40
  6. Step 6: Final answer
    x = 11,478.60

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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.