Home / 26,310.40-39,465.60-7,842.40

Finding the Fourth Proportional to 26,310.40, 39,465.60 and 7,842.40

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Solution

The fourth proportional to 26,310.40, 39,465.60 and 7,842.40 is: 11,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,310.40 : 39,465.60 = 7,842.40 : x
  2. Step 2: Convert to fraction form
    26,310.40/39,465.60 = 7,842.40/x
  3. Step 3: Cross multiply
    26,310.40x = 39,465.60 × 7,842.40
  4. Step 4: Simplify right side
    26,310.40x = 309,505,021.44
  5. Step 5: Solve for x
    x = 309,505,021.44/26,310.40
  6. Step 6: Final answer
    x = 11,763.60

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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.