Home / 18,784.45-28,180.43-6,938.29

Finding the Fourth Proportional to 18,784.45, 28,180.43 and 6,938.29

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Solution

The fourth proportional to 18,784.45, 28,180.43 and 6,938.29 is: 10,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.45 : 28,180.43 = 6,938.29 : x
  2. Step 2: Convert to fraction form
    18,784.45/28,180.43 = 6,938.29/x
  3. Step 3: Cross multiply
    18,784.45x = 28,180.43 × 6,938.29
  4. Step 4: Simplify right side
    18,784.45x = 195,523,995.66
  5. Step 5: Solve for x
    x = 195,523,995.66/18,784.45
  6. Step 6: Final answer
    x = 10,408.82

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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.