Home / 13,212.45-19,818.54-4,447.31

Finding the Fourth Proportional to 13,212.45, 19,818.54 and 4,447.31

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Solution

The fourth proportional to 13,212.45, 19,818.54 and 4,447.31 is: 6,670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.45 : 19,818.54 = 4,447.31 : x
  2. Step 2: Convert to fraction form
    13,212.45/19,818.54 = 4,447.31/x
  3. Step 3: Cross multiply
    13,212.45x = 19,818.54 × 4,447.31
  4. Step 4: Simplify right side
    13,212.45x = 88,139,092.03
  5. Step 5: Solve for x
    x = 88,139,092.03/13,212.45
  6. Step 6: Final answer
    x = 6,670.91

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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.