Home / 18,688.50-28,032.75-7,601.22

Finding the Fourth Proportional to 18,688.50, 28,032.75 and 7,601.22

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Solution

The fourth proportional to 18,688.50, 28,032.75 and 7,601.22 is: 11,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.50 : 28,032.75 = 7,601.22 : x
  2. Step 2: Convert to fraction form
    18,688.50/28,032.75 = 7,601.22/x
  3. Step 3: Cross multiply
    18,688.50x = 28,032.75 × 7,601.22
  4. Step 4: Simplify right side
    18,688.50x = 213,083,099.96
  5. Step 5: Solve for x
    x = 213,083,099.96/18,688.50
  6. Step 6: Final answer
    x = 11,401.83

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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.