Home / 15,357.22-21,193.08-9,072.70

Finding the Fourth Proportional to 15,357.22, 21,193.08 and 9,072.70

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Solution

The fourth proportional to 15,357.22, 21,193.08 and 9,072.70 is: 12,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357.22 : 21,193.08 = 9,072.70 : x
  2. Step 2: Convert to fraction form
    15,357.22/21,193.08 = 9,072.70/x
  3. Step 3: Cross multiply
    15,357.22x = 21,193.08 × 9,072.70
  4. Step 4: Simplify right side
    15,357.22x = 192,278,456.92
  5. Step 5: Solve for x
    x = 192,278,456.92/15,357.22
  6. Step 6: Final answer
    x = 12,520.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.