Home / 15,334.30-21,163.58-8,620.48

Finding the Fourth Proportional to 15,334.30, 21,163.58 and 8,620.48

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Solution

The fourth proportional to 15,334.30, 21,163.58 and 8,620.48 is: 11,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.30 : 21,163.58 = 8,620.48 : x
  2. Step 2: Convert to fraction form
    15,334.30/21,163.58 = 8,620.48/x
  3. Step 3: Cross multiply
    15,334.30x = 21,163.58 × 8,620.48
  4. Step 4: Simplify right side
    15,334.30x = 182,440,218.12
  5. Step 5: Solve for x
    x = 182,440,218.12/15,334.30
  6. Step 6: Final answer
    x = 11,897.53

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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.