Home / 14,388.12-19,857.42-8,723.79

Finding the Fourth Proportional to 14,388.12, 19,857.42 and 8,723.79

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Solution

The fourth proportional to 14,388.12, 19,857.42 and 8,723.79 is: 12,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.12 : 19,857.42 = 8,723.79 : x
  2. Step 2: Convert to fraction form
    14,388.12/19,857.42 = 8,723.79/x
  3. Step 3: Cross multiply
    14,388.12x = 19,857.42 × 8,723.79
  4. Step 4: Simplify right side
    14,388.12x = 173,231,962.02
  5. Step 5: Solve for x
    x = 173,231,962.02/14,388.12
  6. Step 6: Final answer
    x = 12,039.93

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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.