Home / 13,215.86-19,824.37-4,331.69

Finding the Fourth Proportional to 13,215.86, 19,824.37 and 4,331.69

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Solution

The fourth proportional to 13,215.86, 19,824.37 and 4,331.69 is: 6,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.86 : 19,824.37 = 4,331.69 : x
  2. Step 2: Convert to fraction form
    13,215.86/19,824.37 = 4,331.69/x
  3. Step 3: Cross multiply
    13,215.86x = 19,824.37 × 4,331.69
  4. Step 4: Simplify right side
    13,215.86x = 85,873,025.29
  5. Step 5: Solve for x
    x = 85,873,025.29/13,215.86
  6. Step 6: Final answer
    x = 6,497.73

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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.