Home / 13,488.06-20,207.78-7,241.43

Finding the Fourth Proportional to 13,488.06, 20,207.78 and 7,241.43

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Solution

The fourth proportional to 13,488.06, 20,207.78 and 7,241.43 is: 10,849.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.06 : 20,207.78 = 7,241.43 : x
  2. Step 2: Convert to fraction form
    13,488.06/20,207.78 = 7,241.43/x
  3. Step 3: Cross multiply
    13,488.06x = 20,207.78 × 7,241.43
  4. Step 4: Simplify right side
    13,488.06x = 146,333,188.12
  5. Step 5: Solve for x
    x = 146,333,188.12/13,488.06
  6. Step 6: Final answer
    x = 10,849.09

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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.