Home / 11,681.07-16,115.22-7,197.05

Finding the Fourth Proportional to 11,681.07, 16,115.22 and 7,197.05

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Solution

The fourth proportional to 11,681.07, 16,115.22 and 7,197.05 is: 9,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.07 : 16,115.22 = 7,197.05 : x
  2. Step 2: Convert to fraction form
    11,681.07/16,115.22 = 7,197.05/x
  3. Step 3: Cross multiply
    11,681.07x = 16,115.22 × 7,197.05
  4. Step 4: Simplify right side
    11,681.07x = 115,981,963.52
  5. Step 5: Solve for x
    x = 115,981,963.52/11,681.07
  6. Step 6: Final answer
    x = 9,929.05

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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.