Home / 11,772.18-17,640.99-5,920.74

Finding the Fourth Proportional to 11,772.18, 17,640.99 and 5,920.74

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Solution

The fourth proportional to 11,772.18, 17,640.99 and 5,920.74 is: 8,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.18 : 17,640.99 = 5,920.74 : x
  2. Step 2: Convert to fraction form
    11,772.18/17,640.99 = 5,920.74/x
  3. Step 3: Cross multiply
    11,772.18x = 17,640.99 × 5,920.74
  4. Step 4: Simplify right side
    11,772.18x = 104,447,715.13
  5. Step 5: Solve for x
    x = 104,447,715.13/11,772.18
  6. Step 6: Final answer
    x = 8,872.42

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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.