Home / 8,931.24-13,396.88-4,311

Finding the Fourth Proportional to 8,931.24, 13,396.88 and 4,311

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Solution

The fourth proportional to 8,931.24, 13,396.88 and 4,311 is: 6,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.24 : 13,396.88 = 4,311 : x
  2. Step 2: Convert to fraction form
    8,931.24/13,396.88 = 4,311/x
  3. Step 3: Cross multiply
    8,931.24x = 13,396.88 × 4,311
  4. Step 4: Simplify right side
    8,931.24x = 57,753,949.68
  5. Step 5: Solve for x
    x = 57,753,949.68/8,931.24
  6. Step 6: Final answer
    x = 6,466.51

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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.