Home / 13,883.16-20,832.66-5,116.92

Finding the Fourth Proportional to 13,883.16, 20,832.66 and 5,116.92

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Solution

The fourth proportional to 13,883.16, 20,832.66 and 5,116.92 is: 7,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.16 : 20,832.66 = 5,116.92 : x
  2. Step 2: Convert to fraction form
    13,883.16/20,832.66 = 5,116.92/x
  3. Step 3: Cross multiply
    13,883.16x = 20,832.66 × 5,116.92
  4. Step 4: Simplify right side
    13,883.16x = 106,599,054.61
  5. Step 5: Solve for x
    x = 106,599,054.61/13,883.16
  6. Step 6: Final answer
    x = 7,678.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.