Home / 13,168.38-19,723.41-12,902.70

Finding the Fourth Proportional to 13,168.38, 19,723.41 and 12,902.70

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Solution

The fourth proportional to 13,168.38, 19,723.41 and 12,902.70 is: 19,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.38 : 19,723.41 = 12,902.70 : x
  2. Step 2: Convert to fraction form
    13,168.38/19,723.41 = 12,902.70/x
  3. Step 3: Cross multiply
    13,168.38x = 19,723.41 × 12,902.70
  4. Step 4: Simplify right side
    13,168.38x = 254,485,242.21
  5. Step 5: Solve for x
    x = 254,485,242.21/13,168.38
  6. Step 6: Final answer
    x = 19,325.48

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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.