Home / 13,730.80-20,595.75-5,404.81

Finding the Fourth Proportional to 13,730.80, 20,595.75 and 5,404.81

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Solution

The fourth proportional to 13,730.80, 20,595.75 and 5,404.81 is: 8,107.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.80 : 20,595.75 = 5,404.81 : x
  2. Step 2: Convert to fraction form
    13,730.80/20,595.75 = 5,404.81/x
  3. Step 3: Cross multiply
    13,730.80x = 20,595.75 × 5,404.81
  4. Step 4: Simplify right side
    13,730.80x = 111,316,115.56
  5. Step 5: Solve for x
    x = 111,316,115.56/13,730.80
  6. Step 6: Final answer
    x = 8,107.04

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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.