Home / 14,286.24-19,715.04-7,998.72

Finding the Fourth Proportional to 14,286.24, 19,715.04 and 7,998.72

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Solution

The fourth proportional to 14,286.24, 19,715.04 and 7,998.72 is: 11,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.24 : 19,715.04 = 7,998.72 : x
  2. Step 2: Convert to fraction form
    14,286.24/19,715.04 = 7,998.72/x
  3. Step 3: Cross multiply
    14,286.24x = 19,715.04 × 7,998.72
  4. Step 4: Simplify right side
    14,286.24x = 157,695,084.75
  5. Step 5: Solve for x
    x = 157,695,084.75/14,286.24
  6. Step 6: Final answer
    x = 11,038.25

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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.