Home / 13,521.05-20,283.49-4,161.84

Finding the Fourth Proportional to 13,521.05, 20,283.49 and 4,161.84

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Solution

The fourth proportional to 13,521.05, 20,283.49 and 4,161.84 is: 6,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.05 : 20,283.49 = 4,161.84 : x
  2. Step 2: Convert to fraction form
    13,521.05/20,283.49 = 4,161.84/x
  3. Step 3: Cross multiply
    13,521.05x = 20,283.49 × 4,161.84
  4. Step 4: Simplify right side
    13,521.05x = 84,416,640.02
  5. Step 5: Solve for x
    x = 84,416,640.02/13,521.05
  6. Step 6: Final answer
    x = 6,243.35

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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.