Home / 18,998.25-28,497.78-6,518.22

Finding the Fourth Proportional to 18,998.25, 28,497.78 and 6,518.22

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Solution

The fourth proportional to 18,998.25, 28,497.78 and 6,518.22 is: 9,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.25 : 28,497.78 = 6,518.22 : x
  2. Step 2: Convert to fraction form
    18,998.25/28,497.78 = 6,518.22/x
  3. Step 3: Cross multiply
    18,998.25x = 28,497.78 × 6,518.22
  4. Step 4: Simplify right side
    18,998.25x = 185,754,799.55
  5. Step 5: Solve for x
    x = 185,754,799.55/18,998.25
  6. Step 6: Final answer
    x = 9,777.47

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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.