Home / 15,213.70-22,820.55-4,122.10

Finding the Fourth Proportional to 15,213.70, 22,820.55 and 4,122.10

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Solution

The fourth proportional to 15,213.70, 22,820.55 and 4,122.10 is: 6,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.70 : 22,820.55 = 4,122.10 : x
  2. Step 2: Convert to fraction form
    15,213.70/22,820.55 = 4,122.10/x
  3. Step 3: Cross multiply
    15,213.70x = 22,820.55 × 4,122.10
  4. Step 4: Simplify right side
    15,213.70x = 94,068,589.16
  5. Step 5: Solve for x
    x = 94,068,589.16/15,213.70
  6. Step 6: Final answer
    x = 6,183.15

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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.