Home / 13,195.80-19,790.50-4,428.44

Finding the Fourth Proportional to 13,195.80, 19,790.50 and 4,428.44

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Solution

The fourth proportional to 13,195.80, 19,790.50 and 4,428.44 is: 6,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.80 : 19,790.50 = 4,428.44 : x
  2. Step 2: Convert to fraction form
    13,195.80/19,790.50 = 4,428.44/x
  3. Step 3: Cross multiply
    13,195.80x = 19,790.50 × 4,428.44
  4. Step 4: Simplify right side
    13,195.80x = 87,641,041.82
  5. Step 5: Solve for x
    x = 87,641,041.82/13,195.80
  6. Step 6: Final answer
    x = 6,641.59

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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.