Home / 15,362.04-21,198-8,647.56

Finding the Fourth Proportional to 15,362.04, 21,198 and 8,647.56

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Solution

The fourth proportional to 15,362.04, 21,198 and 8,647.56 is: 11,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.04 : 21,198 = 8,647.56 : x
  2. Step 2: Convert to fraction form
    15,362.04/21,198 = 8,647.56/x
  3. Step 3: Cross multiply
    15,362.04x = 21,198 × 8,647.56
  4. Step 4: Simplify right side
    15,362.04x = 183,310,976.88
  5. Step 5: Solve for x
    x = 183,310,976.88/15,362.04
  6. Step 6: Final answer
    x = 11,932.72

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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.