Home / 13,399.65-20,099.66-9,238.55

Finding the Fourth Proportional to 13,399.65, 20,099.66 and 9,238.55

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Solution

The fourth proportional to 13,399.65, 20,099.66 and 9,238.55 is: 13,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.65 : 20,099.66 = 9,238.55 : x
  2. Step 2: Convert to fraction form
    13,399.65/20,099.66 = 9,238.55/x
  3. Step 3: Cross multiply
    13,399.65x = 20,099.66 × 9,238.55
  4. Step 4: Simplify right side
    13,399.65x = 185,691,567.20
  5. Step 5: Solve for x
    x = 185,691,567.20/13,399.65
  6. Step 6: Final answer
    x = 13,857.94

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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.