Home / 13,086.68-19,703.97-11,536.61

Finding the Fourth Proportional to 13,086.68, 19,703.97 and 11,536.61

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Solution

The fourth proportional to 13,086.68, 19,703.97 and 11,536.61 is: 17,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.68 : 19,703.97 = 11,536.61 : x
  2. Step 2: Convert to fraction form
    13,086.68/19,703.97 = 11,536.61/x
  3. Step 3: Cross multiply
    13,086.68x = 19,703.97 × 11,536.61
  4. Step 4: Simplify right side
    13,086.68x = 227,316,918.82
  5. Step 5: Solve for x
    x = 227,316,918.82/13,086.68
  6. Step 6: Final answer
    x = 17,370.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.