Home / 19,719.09-27,212.19-10,766.58

Finding the Fourth Proportional to 19,719.09, 27,212.19 and 10,766.58

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Solution

The fourth proportional to 19,719.09, 27,212.19 and 10,766.58 is: 14,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.09 : 27,212.19 = 10,766.58 : x
  2. Step 2: Convert to fraction form
    19,719.09/27,212.19 = 10,766.58/x
  3. Step 3: Cross multiply
    19,719.09x = 27,212.19 × 10,766.58
  4. Step 4: Simplify right side
    19,719.09x = 292,982,220.61
  5. Step 5: Solve for x
    x = 292,982,220.61/19,719.09
  6. Step 6: Final answer
    x = 14,857.80

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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.