Home / 26,468.80-39,703.20-7,998.40

Finding the Fourth Proportional to 26,468.80, 39,703.20 and 7,998.40

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Solution

The fourth proportional to 26,468.80, 39,703.20 and 7,998.40 is: 11,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,468.80 : 39,703.20 = 7,998.40 : x
  2. Step 2: Convert to fraction form
    26,468.80/39,703.20 = 7,998.40/x
  3. Step 3: Cross multiply
    26,468.80x = 39,703.20 × 7,998.40
  4. Step 4: Simplify right side
    26,468.80x = 317,562,074.88
  5. Step 5: Solve for x
    x = 317,562,074.88/26,468.80
  6. Step 6: Final answer
    x = 11,997.60

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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.