Home / 7,389.78-10,199.25-4,247.88

Finding the Fourth Proportional to 7,389.78, 10,199.25 and 4,247.88

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Solution

The fourth proportional to 7,389.78, 10,199.25 and 4,247.88 is: 5,862.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.78 : 10,199.25 = 4,247.88 : x
  2. Step 2: Convert to fraction form
    7,389.78/10,199.25 = 4,247.88/x
  3. Step 3: Cross multiply
    7,389.78x = 10,199.25 × 4,247.88
  4. Step 4: Simplify right side
    7,389.78x = 43,325,190.09
  5. Step 5: Solve for x
    x = 43,325,190.09/7,389.78
  6. Step 6: Final answer
    x = 5,862.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.