Home / 19,661.07-27,133.05-11,279.19

Finding the Fourth Proportional to 19,661.07, 27,133.05 and 11,279.19

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Solution

The fourth proportional to 19,661.07, 27,133.05 and 11,279.19 is: 15,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.07 : 27,133.05 = 11,279.19 : x
  2. Step 2: Convert to fraction form
    19,661.07/27,133.05 = 11,279.19/x
  3. Step 3: Cross multiply
    19,661.07x = 27,133.05 × 11,279.19
  4. Step 4: Simplify right side
    19,661.07x = 306,038,826.23
  5. Step 5: Solve for x
    x = 306,038,826.23/19,661.07
  6. Step 6: Final answer
    x = 15,565.73

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Double scale
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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.