Home / 13,313.86-19,967.36-3,951.66

Finding the Fourth Proportional to 13,313.86, 19,967.36 and 3,951.66

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Solution

The fourth proportional to 13,313.86, 19,967.36 and 3,951.66 is: 5,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.86 : 19,967.36 = 3,951.66 : x
  2. Step 2: Convert to fraction form
    13,313.86/19,967.36 = 3,951.66/x
  3. Step 3: Cross multiply
    13,313.86x = 19,967.36 × 3,951.66
  4. Step 4: Simplify right side
    13,313.86x = 78,904,198.06
  5. Step 5: Solve for x
    x = 78,904,198.06/13,313.86
  6. Step 6: Final answer
    x = 5,926.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.