Home / 13,918.71-19,194.78-11,095.45

Finding the Fourth Proportional to 13,918.71, 19,194.78 and 11,095.45

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Solution

The fourth proportional to 13,918.71, 19,194.78 and 11,095.45 is: 15,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.71 : 19,194.78 = 11,095.45 : x
  2. Step 2: Convert to fraction form
    13,918.71/19,194.78 = 11,095.45/x
  3. Step 3: Cross multiply
    13,918.71x = 19,194.78 × 11,095.45
  4. Step 4: Simplify right side
    13,918.71x = 212,974,721.75
  5. Step 5: Solve for x
    x = 212,974,721.75/13,918.71
  6. Step 6: Final answer
    x = 15,301.33

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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.