Home / 13,381.05-20,084.03-6,812.15

Finding the Fourth Proportional to 13,381.05, 20,084.03 and 6,812.15

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Solution

The fourth proportional to 13,381.05, 20,084.03 and 6,812.15 is: 10,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.05 : 20,084.03 = 6,812.15 : x
  2. Step 2: Convert to fraction form
    13,381.05/20,084.03 = 6,812.15/x
  3. Step 3: Cross multiply
    13,381.05x = 20,084.03 × 6,812.15
  4. Step 4: Simplify right side
    13,381.05x = 136,815,391.34
  5. Step 5: Solve for x
    x = 136,815,391.34/13,381.05
  6. Step 6: Final answer
    x = 10,224.57

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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.