Home / 26,147.84-39,226.62-8,618.90

Finding the Fourth Proportional to 26,147.84, 39,226.62 and 8,618.90

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Solution

The fourth proportional to 26,147.84, 39,226.62 and 8,618.90 is: 12,929.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,147.84 : 39,226.62 = 8,618.90 : x
  2. Step 2: Convert to fraction form
    26,147.84/39,226.62 = 8,618.90/x
  3. Step 3: Cross multiply
    26,147.84x = 39,226.62 × 8,618.90
  4. Step 4: Simplify right side
    26,147.84x = 338,090,315.12
  5. Step 5: Solve for x
    x = 338,090,315.12/26,147.84
  6. Step 6: Final answer
    x = 12,929.95

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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.