Home / 15,656.03-21,605.49-8,942.54

Finding the Fourth Proportional to 15,656.03, 21,605.49 and 8,942.54

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Solution

The fourth proportional to 15,656.03, 21,605.49 and 8,942.54 is: 12,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.03 : 21,605.49 = 8,942.54 : x
  2. Step 2: Convert to fraction form
    15,656.03/21,605.49 = 8,942.54/x
  3. Step 3: Cross multiply
    15,656.03x = 21,605.49 × 8,942.54
  4. Step 4: Simplify right side
    15,656.03x = 193,208,012.56
  5. Step 5: Solve for x
    x = 193,208,012.56/15,656.03
  6. Step 6: Final answer
    x = 12,340.81

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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.