Home / 19,127.24-28,684.41-7,278.20

Finding the Fourth Proportional to 19,127.24, 28,684.41 and 7,278.20

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Solution

The fourth proportional to 19,127.24, 28,684.41 and 7,278.20 is: 10,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.24 : 28,684.41 = 7,278.20 : x
  2. Step 2: Convert to fraction form
    19,127.24/28,684.41 = 7,278.20/x
  3. Step 3: Cross multiply
    19,127.24x = 28,684.41 × 7,278.20
  4. Step 4: Simplify right side
    19,127.24x = 208,770,872.86
  5. Step 5: Solve for x
    x = 208,770,872.86/19,127.24
  6. Step 6: Final answer
    x = 10,914.85

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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.