Home / 18,845.53-28,272.39-5,697.56

Finding the Fourth Proportional to 18,845.53, 28,272.39 and 5,697.56

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Solution

The fourth proportional to 18,845.53, 28,272.39 and 5,697.56 is: 8,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.53 : 28,272.39 = 5,697.56 : x
  2. Step 2: Convert to fraction form
    18,845.53/28,272.39 = 5,697.56/x
  3. Step 3: Cross multiply
    18,845.53x = 28,272.39 × 5,697.56
  4. Step 4: Simplify right side
    18,845.53x = 161,083,489.88
  5. Step 5: Solve for x
    x = 161,083,489.88/18,845.53
  6. Step 6: Final answer
    x = 8,547.57

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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.