Home / 13,644.49-20,423.46-8,953.39

Finding the Fourth Proportional to 13,644.49, 20,423.46 and 8,953.39

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Solution

The fourth proportional to 13,644.49, 20,423.46 and 8,953.39 is: 13,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.49 : 20,423.46 = 8,953.39 : x
  2. Step 2: Convert to fraction form
    13,644.49/20,423.46 = 8,953.39/x
  3. Step 3: Cross multiply
    13,644.49x = 20,423.46 × 8,953.39
  4. Step 4: Simplify right side
    13,644.49x = 182,859,202.53
  5. Step 5: Solve for x
    x = 182,859,202.53/13,644.49
  6. Step 6: Final answer
    x = 13,401.69

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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.