Home / 19,718.82-27,211.80-10,766.28

Finding the Fourth Proportional to 19,718.82, 27,211.80 and 10,766.28

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Solution

The fourth proportional to 19,718.82, 27,211.80 and 10,766.28 is: 14,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.82 : 27,211.80 = 10,766.28 : x
  2. Step 2: Convert to fraction form
    19,718.82/27,211.80 = 10,766.28/x
  3. Step 3: Cross multiply
    19,718.82x = 27,211.80 × 10,766.28
  4. Step 4: Simplify right side
    19,718.82x = 292,969,858.10
  5. Step 5: Solve for x
    x = 292,969,858.10/19,718.82
  6. Step 6: Final answer
    x = 14,857.37

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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.