Home / 13,423.35-20,132.28-5,100.44

Finding the Fourth Proportional to 13,423.35, 20,132.28 and 5,100.44

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Solution

The fourth proportional to 13,423.35, 20,132.28 and 5,100.44 is: 7,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.35 : 20,132.28 = 5,100.44 : x
  2. Step 2: Convert to fraction form
    13,423.35/20,132.28 = 5,100.44/x
  3. Step 3: Cross multiply
    13,423.35x = 20,132.28 × 5,100.44
  4. Step 4: Simplify right side
    13,423.35x = 102,683,486.20
  5. Step 5: Solve for x
    x = 102,683,486.20/13,423.35
  6. Step 6: Final answer
    x = 7,649.62

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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.