Home / 18,922.84-28,355.06-11,982.76

Finding the Fourth Proportional to 18,922.84, 28,355.06 and 11,982.76

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Solution

The fourth proportional to 18,922.84, 28,355.06 and 11,982.76 is: 17,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.84 : 28,355.06 = 11,982.76 : x
  2. Step 2: Convert to fraction form
    18,922.84/28,355.06 = 11,982.76/x
  3. Step 3: Cross multiply
    18,922.84x = 28,355.06 × 11,982.76
  4. Step 4: Simplify right side
    18,922.84x = 339,771,878.77
  5. Step 5: Solve for x
    x = 339,771,878.77/18,922.84
  6. Step 6: Final answer
    x = 17,955.65

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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.