Home / 15,362.45-21,198.53-8,647.96

Finding the Fourth Proportional to 15,362.45, 21,198.53 and 8,647.96

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Solution

The fourth proportional to 15,362.45, 21,198.53 and 8,647.96 is: 11,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.45 : 21,198.53 = 8,647.96 : x
  2. Step 2: Convert to fraction form
    15,362.45/21,198.53 = 8,647.96/x
  3. Step 3: Cross multiply
    15,362.45x = 21,198.53 × 8,647.96
  4. Step 4: Simplify right side
    15,362.45x = 183,324,008.12
  5. Step 5: Solve for x
    x = 183,324,008.12/15,362.45
  6. Step 6: Final answer
    x = 11,933.25

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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.