Home / 14,389.38-21,593.85-5,155.38

Finding the Fourth Proportional to 14,389.38, 21,593.85 and 5,155.38

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Solution

The fourth proportional to 14,389.38, 21,593.85 and 5,155.38 is: 7,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.38 : 21,593.85 = 5,155.38 : x
  2. Step 2: Convert to fraction form
    14,389.38/21,593.85 = 5,155.38/x
  3. Step 3: Cross multiply
    14,389.38x = 21,593.85 × 5,155.38
  4. Step 4: Simplify right side
    14,389.38x = 111,324,502.41
  5. Step 5: Solve for x
    x = 111,324,502.41/14,389.38
  6. Step 6: Final answer
    x = 7,736.57

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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.