Home / 18,961.74-28,445.58-5,812.74

Finding the Fourth Proportional to 18,961.74, 28,445.58 and 5,812.74

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Solution

The fourth proportional to 18,961.74, 28,445.58 and 5,812.74 is: 8,720.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.74 : 28,445.58 = 5,812.74 : x
  2. Step 2: Convert to fraction form
    18,961.74/28,445.58 = 5,812.74/x
  3. Step 3: Cross multiply
    18,961.74x = 28,445.58 × 5,812.74
  4. Step 4: Simplify right side
    18,961.74x = 165,346,760.69
  5. Step 5: Solve for x
    x = 165,346,760.69/18,961.74
  6. Step 6: Final answer
    x = 8,720.02

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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.