Home / 13,599.94-18,767.28-8,223.70

Finding the Fourth Proportional to 13,599.94, 18,767.28 and 8,223.70

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Solution

The fourth proportional to 13,599.94, 18,767.28 and 8,223.70 is: 11,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.94 : 18,767.28 = 8,223.70 : x
  2. Step 2: Convert to fraction form
    13,599.94/18,767.28 = 8,223.70/x
  3. Step 3: Cross multiply
    13,599.94x = 18,767.28 × 8,223.70
  4. Step 4: Simplify right side
    13,599.94x = 154,336,480.54
  5. Step 5: Solve for x
    x = 154,336,480.54/13,599.94
  6. Step 6: Final answer
    x = 11,348.32

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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.