Home / 19,112.20-26,370.22-11,149.88

Finding the Fourth Proportional to 19,112.20, 26,370.22 and 11,149.88

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Solution

The fourth proportional to 19,112.20, 26,370.22 and 11,149.88 is: 15,384.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.20 : 26,370.22 = 11,149.88 : x
  2. Step 2: Convert to fraction form
    19,112.20/26,370.22 = 11,149.88/x
  3. Step 3: Cross multiply
    19,112.20x = 26,370.22 × 11,149.88
  4. Step 4: Simplify right side
    19,112.20x = 294,024,788.57
  5. Step 5: Solve for x
    x = 294,024,788.57/19,112.20
  6. Step 6: Final answer
    x = 15,384.14

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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.