Home / 13,356.83-20,029.16-7,115.24

Finding the Fourth Proportional to 13,356.83, 20,029.16 and 7,115.24

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Solution

The fourth proportional to 13,356.83, 20,029.16 and 7,115.24 is: 10,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.83 : 20,029.16 = 7,115.24 : x
  2. Step 2: Convert to fraction form
    13,356.83/20,029.16 = 7,115.24/x
  3. Step 3: Cross multiply
    13,356.83x = 20,029.16 × 7,115.24
  4. Step 4: Simplify right side
    13,356.83x = 142,512,144.68
  5. Step 5: Solve for x
    x = 142,512,144.68/13,356.83
  6. Step 6: Final answer
    x = 10,669.61

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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.