Home / 19,518.88-26,939.28-13,227.04

Finding the Fourth Proportional to 19,518.88, 26,939.28 and 13,227.04

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Solution

The fourth proportional to 19,518.88, 26,939.28 and 13,227.04 is: 18,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.88 : 26,939.28 = 13,227.04 : x
  2. Step 2: Convert to fraction form
    19,518.88/26,939.28 = 13,227.04/x
  3. Step 3: Cross multiply
    19,518.88x = 26,939.28 × 13,227.04
  4. Step 4: Simplify right side
    19,518.88x = 356,326,934.13
  5. Step 5: Solve for x
    x = 356,326,934.13/19,518.88
  6. Step 6: Final answer
    x = 18,255.50

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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.