Home / 14,287.08-19,715.88-7,999.56

Finding the Fourth Proportional to 14,287.08, 19,715.88 and 7,999.56

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Solution

The fourth proportional to 14,287.08, 19,715.88 and 7,999.56 is: 11,039.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.08 : 19,715.88 = 7,999.56 : x
  2. Step 2: Convert to fraction form
    14,287.08/19,715.88 = 7,999.56/x
  3. Step 3: Cross multiply
    14,287.08x = 19,715.88 × 7,999.56
  4. Step 4: Simplify right side
    14,287.08x = 157,718,365.01
  5. Step 5: Solve for x
    x = 157,718,365.01/14,287.08
  6. Step 6: Final answer
    x = 11,039.23

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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.