Home / 19,511.13-26,923.34-11,013.72

Finding the Fourth Proportional to 19,511.13, 26,923.34 and 11,013.72

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Solution

The fourth proportional to 19,511.13, 26,923.34 and 11,013.72 is: 15,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.13 : 26,923.34 = 11,013.72 : x
  2. Step 2: Convert to fraction form
    19,511.13/26,923.34 = 11,013.72/x
  3. Step 3: Cross multiply
    19,511.13x = 26,923.34 × 11,013.72
  4. Step 4: Simplify right side
    19,511.13x = 296,526,073.16
  5. Step 5: Solve for x
    x = 296,526,073.16/19,511.13
  6. Step 6: Final answer
    x = 15,197.79

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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.