Home / 18,844.75-28,267.13-7,757.47

Finding the Fourth Proportional to 18,844.75, 28,267.13 and 7,757.47

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Solution

The fourth proportional to 18,844.75, 28,267.13 and 7,757.47 is: 11,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.75 : 28,267.13 = 7,757.47 : x
  2. Step 2: Convert to fraction form
    18,844.75/28,267.13 = 7,757.47/x
  3. Step 3: Cross multiply
    18,844.75x = 28,267.13 × 7,757.47
  4. Step 4: Simplify right side
    18,844.75x = 219,281,412.96
  5. Step 5: Solve for x
    x = 219,281,412.96/18,844.75
  6. Step 6: Final answer
    x = 11,636.21

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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.