Home / 18,982.84-28,491.76-9,629.42

Finding the Fourth Proportional to 18,982.84, 28,491.76 and 9,629.42

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Solution

The fourth proportional to 18,982.84, 28,491.76 and 9,629.42 is: 14,453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.84 : 28,491.76 = 9,629.42 : x
  2. Step 2: Convert to fraction form
    18,982.84/28,491.76 = 9,629.42/x
  3. Step 3: Cross multiply
    18,982.84x = 28,491.76 × 9,629.42
  4. Step 4: Simplify right side
    18,982.84x = 274,359,123.58
  5. Step 5: Solve for x
    x = 274,359,123.58/18,982.84
  6. Step 6: Final answer
    x = 14,453.01

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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.