Home / 15,106.36-20,846.76-8,392.61

Finding the Fourth Proportional to 15,106.36, 20,846.76 and 8,392.61

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Solution

The fourth proportional to 15,106.36, 20,846.76 and 8,392.61 is: 11,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.36 : 20,846.76 = 8,392.61 : x
  2. Step 2: Convert to fraction form
    15,106.36/20,846.76 = 8,392.61/x
  3. Step 3: Cross multiply
    15,106.36x = 20,846.76 × 8,392.61
  4. Step 4: Simplify right side
    15,106.36x = 174,958,726.44
  5. Step 5: Solve for x
    x = 174,958,726.44/15,106.36
  6. Step 6: Final answer
    x = 11,581.79

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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.