Home / 13,886.39-19,162.83-7,917.70

Finding the Fourth Proportional to 13,886.39, 19,162.83 and 7,917.70

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Solution

The fourth proportional to 13,886.39, 19,162.83 and 7,917.70 is: 10,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.39 : 19,162.83 = 7,917.70 : x
  2. Step 2: Convert to fraction form
    13,886.39/19,162.83 = 7,917.70/x
  3. Step 3: Cross multiply
    13,886.39x = 19,162.83 × 7,917.70
  4. Step 4: Simplify right side
    13,886.39x = 151,725,512.27
  5. Step 5: Solve for x
    x = 151,725,512.27/13,886.39
  6. Step 6: Final answer
    x = 10,926.21

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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.