Home / 19,865.66-27,414.05-11,368.15

Finding the Fourth Proportional to 19,865.66, 27,414.05 and 11,368.15

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Solution

The fourth proportional to 19,865.66, 27,414.05 and 11,368.15 is: 15,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.66 : 27,414.05 = 11,368.15 : x
  2. Step 2: Convert to fraction form
    19,865.66/27,414.05 = 11,368.15/x
  3. Step 3: Cross multiply
    19,865.66x = 27,414.05 × 11,368.15
  4. Step 4: Simplify right side
    19,865.66x = 311,646,907.13
  5. Step 5: Solve for x
    x = 311,646,907.13/19,865.66
  6. Step 6: Final answer
    x = 15,687.72

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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.