Home / 13,381.07-20,072.14-3,521.34

Finding the Fourth Proportional to 13,381.07, 20,072.14 and 3,521.34

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Solution

The fourth proportional to 13,381.07, 20,072.14 and 3,521.34 is: 5,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.07 : 20,072.14 = 3,521.34 : x
  2. Step 2: Convert to fraction form
    13,381.07/20,072.14 = 3,521.34/x
  3. Step 3: Cross multiply
    13,381.07x = 20,072.14 × 3,521.34
  4. Step 4: Simplify right side
    13,381.07x = 70,680,820.66
  5. Step 5: Solve for x
    x = 70,680,820.66/13,381.07
  6. Step 6: Final answer
    x = 5,282.15

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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.