Home / 19,649.90-27,109.86-11,691.92

Finding the Fourth Proportional to 19,649.90, 27,109.86 and 11,691.92

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Solution

The fourth proportional to 19,649.90, 27,109.86 and 11,691.92 is: 16,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.90 : 27,109.86 = 11,691.92 : x
  2. Step 2: Convert to fraction form
    19,649.90/27,109.86 = 11,691.92/x
  3. Step 3: Cross multiply
    19,649.90x = 27,109.86 × 11,691.92
  4. Step 4: Simplify right side
    19,649.90x = 316,966,314.33
  5. Step 5: Solve for x
    x = 316,966,314.33/19,649.90
  6. Step 6: Final answer
    x = 16,130.68

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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.