Home / 18,716.47-28,033.70-8,825.76

Finding the Fourth Proportional to 18,716.47, 28,033.70 and 8,825.76

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Solution

The fourth proportional to 18,716.47, 28,033.70 and 8,825.76 is: 13,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.47 : 28,033.70 = 8,825.76 : x
  2. Step 2: Convert to fraction form
    18,716.47/28,033.70 = 8,825.76/x
  3. Step 3: Cross multiply
    18,716.47x = 28,033.70 × 8,825.76
  4. Step 4: Simplify right side
    18,716.47x = 247,418,663.98
  5. Step 5: Solve for x
    x = 247,418,663.98/18,716.47
  6. Step 6: Final answer
    x = 13,219.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.