Home / 12,568.44-18,850.74-4,777.20

Finding the Fourth Proportional to 12,568.44, 18,850.74 and 4,777.20

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Solution

The fourth proportional to 12,568.44, 18,850.74 and 4,777.20 is: 7,165.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.44 : 18,850.74 = 4,777.20 : x
  2. Step 2: Convert to fraction form
    12,568.44/18,850.74 = 4,777.20/x
  3. Step 3: Cross multiply
    12,568.44x = 18,850.74 × 4,777.20
  4. Step 4: Simplify right side
    12,568.44x = 90,053,755.13
  5. Step 5: Solve for x
    x = 90,053,755.13/12,568.44
  6. Step 6: Final answer
    x = 7,165.07

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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.