Home / 19,188.39-26,288.19-18,469.30

Finding the Fourth Proportional to 19,188.39, 26,288.19 and 18,469.30

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Solution

The fourth proportional to 19,188.39, 26,288.19 and 18,469.30 is: 25,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.39 : 26,288.19 = 18,469.30 : x
  2. Step 2: Convert to fraction form
    19,188.39/26,288.19 = 18,469.30/x
  3. Step 3: Cross multiply
    19,188.39x = 26,288.19 × 18,469.30
  4. Step 4: Simplify right side
    19,188.39x = 485,524,579.46
  5. Step 5: Solve for x
    x = 485,524,579.46/19,188.39
  6. Step 6: Final answer
    x = 25,303.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.