Home / 18,912.92-28,349.66-10,580.72

Finding the Fourth Proportional to 18,912.92, 28,349.66 and 10,580.72

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Solution

The fourth proportional to 18,912.92, 28,349.66 and 10,580.72 is: 15,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.92 : 28,349.66 = 10,580.72 : x
  2. Step 2: Convert to fraction form
    18,912.92/28,349.66 = 10,580.72/x
  3. Step 3: Cross multiply
    18,912.92x = 28,349.66 × 10,580.72
  4. Step 4: Simplify right side
    18,912.92x = 299,959,814.56
  5. Step 5: Solve for x
    x = 299,959,814.56/18,912.92
  6. Step 6: Final answer
    x = 15,860.05

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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.