Home / 8,983.90-12,396.99-5,005.18

Finding the Fourth Proportional to 8,983.90, 12,396.99 and 5,005.18

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Solution

The fourth proportional to 8,983.90, 12,396.99 and 5,005.18 is: 6,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.90 : 12,396.99 = 5,005.18 : x
  2. Step 2: Convert to fraction form
    8,983.90/12,396.99 = 5,005.18/x
  3. Step 3: Cross multiply
    8,983.90x = 12,396.99 × 5,005.18
  4. Step 4: Simplify right side
    8,983.90x = 62,049,166.41
  5. Step 5: Solve for x
    x = 62,049,166.41/8,983.90
  6. Step 6: Final answer
    x = 6,906.71

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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.