Home / 14,287.13-19,716.24-7,999.64

Finding the Fourth Proportional to 14,287.13, 19,716.24 and 7,999.64

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Solution

The fourth proportional to 14,287.13, 19,716.24 and 7,999.64 is: 11,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.13 : 19,716.24 = 7,999.64 : x
  2. Step 2: Convert to fraction form
    14,287.13/19,716.24 = 7,999.64/x
  3. Step 3: Cross multiply
    14,287.13x = 19,716.24 × 7,999.64
  4. Step 4: Simplify right side
    14,287.13x = 157,722,723.57
  5. Step 5: Solve for x
    x = 157,722,723.57/14,287.13
  6. Step 6: Final answer
    x = 11,039.50

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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.