Home / 8,217.24-12,307.41-7,940.45

Finding the Fourth Proportional to 8,217.24, 12,307.41 and 7,940.45

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Solution

The fourth proportional to 8,217.24, 12,307.41 and 7,940.45 is: 11,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.24 : 12,307.41 = 7,940.45 : x
  2. Step 2: Convert to fraction form
    8,217.24/12,307.41 = 7,940.45/x
  3. Step 3: Cross multiply
    8,217.24x = 12,307.41 × 7,940.45
  4. Step 4: Simplify right side
    8,217.24x = 97,726,373.73
  5. Step 5: Solve for x
    x = 97,726,373.73/8,217.24
  6. Step 6: Final answer
    x = 11,892.85

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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.