Home / 14,286.56-19,715.36-7,999.04

Finding the Fourth Proportional to 14,286.56, 19,715.36 and 7,999.04

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Solution

The fourth proportional to 14,286.56, 19,715.36 and 7,999.04 is: 11,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.56 : 19,715.36 = 7,999.04 : x
  2. Step 2: Convert to fraction form
    14,286.56/19,715.36 = 7,999.04/x
  3. Step 3: Cross multiply
    14,286.56x = 19,715.36 × 7,999.04
  4. Step 4: Simplify right side
    14,286.56x = 157,703,953.25
  5. Step 5: Solve for x
    x = 157,703,953.25/14,286.56
  6. Step 6: Final answer
    x = 11,038.62

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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.