Home / 19,138.38-26,411.99-11,180.13

Finding the Fourth Proportional to 19,138.38, 26,411.99 and 11,180.13

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Solution

The fourth proportional to 19,138.38, 26,411.99 and 11,180.13 is: 15,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.38 : 26,411.99 = 11,180.13 : x
  2. Step 2: Convert to fraction form
    19,138.38/26,411.99 = 11,180.13/x
  3. Step 3: Cross multiply
    19,138.38x = 26,411.99 × 11,180.13
  4. Step 4: Simplify right side
    19,138.38x = 295,289,425.86
  5. Step 5: Solve for x
    x = 295,289,425.86/19,138.38
  6. Step 6: Final answer
    x = 15,429.18

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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.