Home / 19,894.55-27,453.14-11,396.71

Finding the Fourth Proportional to 19,894.55, 27,453.14 and 11,396.71

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Solution

The fourth proportional to 19,894.55, 27,453.14 and 11,396.71 is: 15,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,894.55 : 27,453.14 = 11,396.71 : x
  2. Step 2: Convert to fraction form
    19,894.55/27,453.14 = 11,396.71/x
  3. Step 3: Cross multiply
    19,894.55x = 27,453.14 × 11,396.71
  4. Step 4: Simplify right side
    19,894.55x = 312,875,337.90
  5. Step 5: Solve for x
    x = 312,875,337.90/19,894.55
  6. Step 6: Final answer
    x = 15,726.69

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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.