Home / 13,555.44-20,324.92-5,648.40

Finding the Fourth Proportional to 13,555.44, 20,324.92 and 5,648.40

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Solution

The fourth proportional to 13,555.44, 20,324.92 and 5,648.40 is: 8,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.44 : 20,324.92 = 5,648.40 : x
  2. Step 2: Convert to fraction form
    13,555.44/20,324.92 = 5,648.40/x
  3. Step 3: Cross multiply
    13,555.44x = 20,324.92 × 5,648.40
  4. Step 4: Simplify right side
    13,555.44x = 114,803,278.13
  5. Step 5: Solve for x
    x = 114,803,278.13/13,555.44
  6. Step 6: Final answer
    x = 8,469.17

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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.