Home / 18,725.44-28,089.84-4,874.56

Finding the Fourth Proportional to 18,725.44, 28,089.84 and 4,874.56

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Solution

The fourth proportional to 18,725.44, 28,089.84 and 4,874.56 is: 7,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.44 : 28,089.84 = 4,874.56 : x
  2. Step 2: Convert to fraction form
    18,725.44/28,089.84 = 4,874.56/x
  3. Step 3: Cross multiply
    18,725.44x = 28,089.84 × 4,874.56
  4. Step 4: Simplify right side
    18,725.44x = 136,925,610.47
  5. Step 5: Solve for x
    x = 136,925,610.47/18,725.44
  6. Step 6: Final answer
    x = 7,312.28

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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.