Home / 13,886.08-19,162.41-7,917.61

Finding the Fourth Proportional to 13,886.08, 19,162.41 and 7,917.61

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Solution

The fourth proportional to 13,886.08, 19,162.41 and 7,917.61 is: 10,926.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.08 : 19,162.41 = 7,917.61 : x
  2. Step 2: Convert to fraction form
    13,886.08/19,162.41 = 7,917.61/x
  3. Step 3: Cross multiply
    13,886.08x = 19,162.41 × 7,917.61
  4. Step 4: Simplify right side
    13,886.08x = 151,720,441.13
  5. Step 5: Solve for x
    x = 151,720,441.13/13,886.08
  6. Step 6: Final answer
    x = 10,926.08

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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.