Home / 15,334.43-21,163.68-8,620.49

Finding the Fourth Proportional to 15,334.43, 21,163.68 and 8,620.49

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Solution

The fourth proportional to 15,334.43, 21,163.68 and 8,620.49 is: 11,897.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.43 : 21,163.68 = 8,620.49 : x
  2. Step 2: Convert to fraction form
    15,334.43/21,163.68 = 8,620.49/x
  3. Step 3: Cross multiply
    15,334.43x = 21,163.68 × 8,620.49
  4. Step 4: Simplify right side
    15,334.43x = 182,441,344.71
  5. Step 5: Solve for x
    x = 182,441,344.71/15,334.43
  6. Step 6: Final answer
    x = 11,897.50

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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.