Home / 13,229.13-18,256.77-7,922.93

Finding the Fourth Proportional to 13,229.13, 18,256.77 and 7,922.93

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Solution

The fourth proportional to 13,229.13, 18,256.77 and 7,922.93 is: 10,933.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.13 : 18,256.77 = 7,922.93 : x
  2. Step 2: Convert to fraction form
    13,229.13/18,256.77 = 7,922.93/x
  3. Step 3: Cross multiply
    13,229.13x = 18,256.77 × 7,922.93
  4. Step 4: Simplify right side
    13,229.13x = 144,647,110.74
  5. Step 5: Solve for x
    x = 144,647,110.74/13,229.13
  6. Step 6: Final answer
    x = 10,933.99

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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.