Home / 13,221.19-19,833.62-4,458.61

Finding the Fourth Proportional to 13,221.19, 19,833.62 and 4,458.61

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Solution

The fourth proportional to 13,221.19, 19,833.62 and 4,458.61 is: 6,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.19 : 19,833.62 = 4,458.61 : x
  2. Step 2: Convert to fraction form
    13,221.19/19,833.62 = 4,458.61/x
  3. Step 3: Cross multiply
    13,221.19x = 19,833.62 × 4,458.61
  4. Step 4: Simplify right side
    13,221.19x = 88,430,378.97
  5. Step 5: Solve for x
    x = 88,430,378.97/13,221.19
  6. Step 6: Final answer
    x = 6,688.53

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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.