Home / 13,659.05-20,501.33-7,089.84

Finding the Fourth Proportional to 13,659.05, 20,501.33 and 7,089.84

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Solution

The fourth proportional to 13,659.05, 20,501.33 and 7,089.84 is: 10,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.05 : 20,501.33 = 7,089.84 : x
  2. Step 2: Convert to fraction form
    13,659.05/20,501.33 = 7,089.84/x
  3. Step 3: Cross multiply
    13,659.05x = 20,501.33 × 7,089.84
  4. Step 4: Simplify right side
    13,659.05x = 145,351,114.04
  5. Step 5: Solve for x
    x = 145,351,114.04/13,659.05
  6. Step 6: Final answer
    x = 10,641.38

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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.