Home / 13,329.18-18,392.16-7,662.84

Finding the Fourth Proportional to 13,329.18, 18,392.16 and 7,662.84

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Solution

The fourth proportional to 13,329.18, 18,392.16 and 7,662.84 is: 10,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.18 : 18,392.16 = 7,662.84 : x
  2. Step 2: Convert to fraction form
    13,329.18/18,392.16 = 7,662.84/x
  3. Step 3: Cross multiply
    13,329.18x = 18,392.16 × 7,662.84
  4. Step 4: Simplify right side
    13,329.18x = 140,936,179.33
  5. Step 5: Solve for x
    x = 140,936,179.33/13,329.18
  6. Step 6: Final answer
    x = 10,573.51

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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.