Home / 19,149.90-26,426.81-11,190.54

Finding the Fourth Proportional to 19,149.90, 26,426.81 and 11,190.54

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Solution

The fourth proportional to 19,149.90, 26,426.81 and 11,190.54 is: 15,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.90 : 26,426.81 = 11,190.54 : x
  2. Step 2: Convert to fraction form
    19,149.90/26,426.81 = 11,190.54/x
  3. Step 3: Cross multiply
    19,149.90x = 26,426.81 × 11,190.54
  4. Step 4: Simplify right side
    19,149.90x = 295,730,218.42
  5. Step 5: Solve for x
    x = 295,730,218.42/19,149.90
  6. Step 6: Final answer
    x = 15,442.91

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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.