Home / 8,426.89-12,640.33-2,582.74

Finding the Fourth Proportional to 8,426.89, 12,640.33 and 2,582.74

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Solution

The fourth proportional to 8,426.89, 12,640.33 and 2,582.74 is: 3,874.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.89 : 12,640.33 = 2,582.74 : x
  2. Step 2: Convert to fraction form
    8,426.89/12,640.33 = 2,582.74/x
  3. Step 3: Cross multiply
    8,426.89x = 12,640.33 × 2,582.74
  4. Step 4: Simplify right side
    8,426.89x = 32,646,647.85
  5. Step 5: Solve for x
    x = 32,646,647.85/8,426.89
  6. Step 6: Final answer
    x = 3,874.11

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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.