Home / 14,242.86-19,643.94-13,287.94

Finding the Fourth Proportional to 14,242.86, 19,643.94 and 13,287.94

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Solution

The fourth proportional to 14,242.86, 19,643.94 and 13,287.94 is: 18,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.86 : 19,643.94 = 13,287.94 : x
  2. Step 2: Convert to fraction form
    14,242.86/19,643.94 = 13,287.94/x
  3. Step 3: Cross multiply
    14,242.86x = 19,643.94 × 13,287.94
  4. Step 4: Simplify right side
    14,242.86x = 261,027,446.97
  5. Step 5: Solve for x
    x = 261,027,446.97/14,242.86
  6. Step 6: Final answer
    x = 18,326.90

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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.