Home / 18,922.10-28,383.12-5,774.58

Finding the Fourth Proportional to 18,922.10, 28,383.12 and 5,774.58

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Solution

The fourth proportional to 18,922.10, 28,383.12 and 5,774.58 is: 8,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.10 : 28,383.12 = 5,774.58 : x
  2. Step 2: Convert to fraction form
    18,922.10/28,383.12 = 5,774.58/x
  3. Step 3: Cross multiply
    18,922.10x = 28,383.12 × 5,774.58
  4. Step 4: Simplify right side
    18,922.10x = 163,900,597.09
  5. Step 5: Solve for x
    x = 163,900,597.09/18,922.10
  6. Step 6: Final answer
    x = 8,661.86

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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.