Home / 19,719.07-27,212.10-10,766.54

Finding the Fourth Proportional to 19,719.07, 27,212.10 and 10,766.54

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Solution

The fourth proportional to 19,719.07, 27,212.10 and 10,766.54 is: 14,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.07 : 27,212.10 = 10,766.54 : x
  2. Step 2: Convert to fraction form
    19,719.07/27,212.10 = 10,766.54/x
  3. Step 3: Cross multiply
    19,719.07x = 27,212.10 × 10,766.54
  4. Step 4: Simplify right side
    19,719.07x = 292,980,163.13
  5. Step 5: Solve for x
    x = 292,980,163.13/19,719.07
  6. Step 6: Final answer
    x = 14,857.71

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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.