Home / 13,901.54-20,849.79-5,581.22

Finding the Fourth Proportional to 13,901.54, 20,849.79 and 5,581.22

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Solution

The fourth proportional to 13,901.54, 20,849.79 and 5,581.22 is: 8,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.54 : 20,849.79 = 5,581.22 : x
  2. Step 2: Convert to fraction form
    13,901.54/20,849.79 = 5,581.22/x
  3. Step 3: Cross multiply
    13,901.54x = 20,849.79 × 5,581.22
  4. Step 4: Simplify right side
    13,901.54x = 116,367,264.94
  5. Step 5: Solve for x
    x = 116,367,264.94/13,901.54
  6. Step 6: Final answer
    x = 8,370.82

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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.