Home / 18,738.88-28,106.22-5,588.16

Finding the Fourth Proportional to 18,738.88, 28,106.22 and 5,588.16

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Solution

The fourth proportional to 18,738.88, 28,106.22 and 5,588.16 is: 8,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.88 : 28,106.22 = 5,588.16 : x
  2. Step 2: Convert to fraction form
    18,738.88/28,106.22 = 5,588.16/x
  3. Step 3: Cross multiply
    18,738.88x = 28,106.22 × 5,588.16
  4. Step 4: Simplify right side
    18,738.88x = 157,061,969.91
  5. Step 5: Solve for x
    x = 157,061,969.91/18,738.88
  6. Step 6: Final answer
    x = 8,381.61

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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.