Home / 9,238.12-13,861.50-5,345.80

Finding the Fourth Proportional to 9,238.12, 13,861.50 and 5,345.80

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Solution

The fourth proportional to 9,238.12, 13,861.50 and 5,345.80 is: 8,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,238.12 : 13,861.50 = 5,345.80 : x
  2. Step 2: Convert to fraction form
    9,238.12/13,861.50 = 5,345.80/x
  3. Step 3: Cross multiply
    9,238.12x = 13,861.50 × 5,345.80
  4. Step 4: Simplify right side
    9,238.12x = 74,100,806.70
  5. Step 5: Solve for x
    x = 74,100,806.70/9,238.12
  6. Step 6: Final answer
    x = 8,021.20

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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.