Home / 8,727.30-12,044.61-7,640.63

Finding the Fourth Proportional to 8,727.30, 12,044.61 and 7,640.63

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Solution

The fourth proportional to 8,727.30, 12,044.61 and 7,640.63 is: 10,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.30 : 12,044.61 = 7,640.63 : x
  2. Step 2: Convert to fraction form
    8,727.30/12,044.61 = 7,640.63/x
  3. Step 3: Cross multiply
    8,727.30x = 12,044.61 × 7,640.63
  4. Step 4: Simplify right side
    8,727.30x = 92,028,408.50
  5. Step 5: Solve for x
    x = 92,028,408.50/8,727.30
  6. Step 6: Final answer
    x = 10,544.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.