Home / 13,894.71-20,845.96-5,580.56

Finding the Fourth Proportional to 13,894.71, 20,845.96 and 5,580.56

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Solution

The fourth proportional to 13,894.71, 20,845.96 and 5,580.56 is: 8,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.71 : 20,845.96 = 5,580.56 : x
  2. Step 2: Convert to fraction form
    13,894.71/20,845.96 = 5,580.56/x
  3. Step 3: Cross multiply
    13,894.71x = 20,845.96 × 5,580.56
  4. Step 4: Simplify right side
    13,894.71x = 116,332,130.54
  5. Step 5: Solve for x
    x = 116,332,130.54/13,894.71
  6. Step 6: Final answer
    x = 8,372.41

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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.