Home / 12,862.64-19,178.41-11,764.28

Finding the Fourth Proportional to 12,862.64, 19,178.41 and 11,764.28

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Solution

The fourth proportional to 12,862.64, 19,178.41 and 11,764.28 is: 17,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.64 : 19,178.41 = 11,764.28 : x
  2. Step 2: Convert to fraction form
    12,862.64/19,178.41 = 11,764.28/x
  3. Step 3: Cross multiply
    12,862.64x = 19,178.41 × 11,764.28
  4. Step 4: Simplify right side
    12,862.64x = 225,620,126.37
  5. Step 5: Solve for x
    x = 225,620,126.37/12,862.64
  6. Step 6: Final answer
    x = 17,540.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.