Home / 16,989.75-25,479.77-7,131.24

Finding the Fourth Proportional to 16,989.75, 25,479.77 and 7,131.24

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Solution

The fourth proportional to 16,989.75, 25,479.77 and 7,131.24 is: 10,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.75 : 25,479.77 = 7,131.24 : x
  2. Step 2: Convert to fraction form
    16,989.75/25,479.77 = 7,131.24/x
  3. Step 3: Cross multiply
    16,989.75x = 25,479.77 × 7,131.24
  4. Step 4: Simplify right side
    16,989.75x = 181,702,319.36
  5. Step 5: Solve for x
    x = 181,702,319.36/16,989.75
  6. Step 6: Final answer
    x = 10,694.82

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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.