Home / 19,653.39-27,117.18-11,153.43

Finding the Fourth Proportional to 19,653.39, 27,117.18 and 11,153.43

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Solution

The fourth proportional to 19,653.39, 27,117.18 and 11,153.43 is: 15,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.39 : 27,117.18 = 11,153.43 : x
  2. Step 2: Convert to fraction form
    19,653.39/27,117.18 = 11,153.43/x
  3. Step 3: Cross multiply
    19,653.39x = 27,117.18 × 11,153.43
  4. Step 4: Simplify right side
    19,653.39x = 302,449,568.93
  5. Step 5: Solve for x
    x = 302,449,568.93/19,653.39
  6. Step 6: Final answer
    x = 15,389.18

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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.