Home / 19,390.27-26,757.08-10,889.68

Finding the Fourth Proportional to 19,390.27, 26,757.08 and 10,889.68

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Solution

The fourth proportional to 19,390.27, 26,757.08 and 10,889.68 is: 15,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.27 : 26,757.08 = 10,889.68 : x
  2. Step 2: Convert to fraction form
    19,390.27/26,757.08 = 10,889.68/x
  3. Step 3: Cross multiply
    19,390.27x = 26,757.08 × 10,889.68
  4. Step 4: Simplify right side
    19,390.27x = 291,375,850.70
  5. Step 5: Solve for x
    x = 291,375,850.70/19,390.27
  6. Step 6: Final answer
    x = 15,026.91

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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.