Home / 19,517.32-26,934.40-11,967.81

Finding the Fourth Proportional to 19,517.32, 26,934.40 and 11,967.81

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Solution

The fourth proportional to 19,517.32, 26,934.40 and 11,967.81 is: 16,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.32 : 26,934.40 = 11,967.81 : x
  2. Step 2: Convert to fraction form
    19,517.32/26,934.40 = 11,967.81/x
  3. Step 3: Cross multiply
    19,517.32x = 26,934.40 × 11,967.81
  4. Step 4: Simplify right side
    19,517.32x = 322,345,781.66
  5. Step 5: Solve for x
    x = 322,345,781.66/19,517.32
  6. Step 6: Final answer
    x = 16,515.88

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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.