Home / 26,418.47-39,632.88-9,778.64

Finding the Fourth Proportional to 26,418.47, 39,632.88 and 9,778.64

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Solution

The fourth proportional to 26,418.47, 39,632.88 and 9,778.64 is: 14,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,418.47 : 39,632.88 = 9,778.64 : x
  2. Step 2: Convert to fraction form
    26,418.47/39,632.88 = 9,778.64/x
  3. Step 3: Cross multiply
    26,418.47x = 39,632.88 × 9,778.64
  4. Step 4: Simplify right side
    26,418.47x = 387,555,801.44
  5. Step 5: Solve for x
    x = 387,555,801.44/26,418.47
  6. Step 6: Final answer
    x = 14,669.88

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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.