Home / 7,857.41-11,778.21-4,937.76

Finding the Fourth Proportional to 7,857.41, 11,778.21 and 4,937.76

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Solution

The fourth proportional to 7,857.41, 11,778.21 and 4,937.76 is: 7,401.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.41 : 11,778.21 = 4,937.76 : x
  2. Step 2: Convert to fraction form
    7,857.41/11,778.21 = 4,937.76/x
  3. Step 3: Cross multiply
    7,857.41x = 11,778.21 × 4,937.76
  4. Step 4: Simplify right side
    7,857.41x = 58,157,974.21
  5. Step 5: Solve for x
    x = 58,157,974.21/7,857.41
  6. Step 6: Final answer
    x = 7,401.68

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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.