Home / 13,939.50-20,916.42-9,262.74

Finding the Fourth Proportional to 13,939.50, 20,916.42 and 9,262.74

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Solution

The fourth proportional to 13,939.50, 20,916.42 and 9,262.74 is: 13,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.50 : 20,916.42 = 9,262.74 : x
  2. Step 2: Convert to fraction form
    13,939.50/20,916.42 = 9,262.74/x
  3. Step 3: Cross multiply
    13,939.50x = 20,916.42 × 9,262.74
  4. Step 4: Simplify right side
    13,939.50x = 193,743,360.19
  5. Step 5: Solve for x
    x = 193,743,360.19/13,939.50
  6. Step 6: Final answer
    x = 13,898.87

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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.