Home / 18,774.18-28,123.61-8,922.96

Finding the Fourth Proportional to 18,774.18, 28,123.61 and 8,922.96

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Solution

The fourth proportional to 18,774.18, 28,123.61 and 8,922.96 is: 13,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.18 : 28,123.61 = 8,922.96 : x
  2. Step 2: Convert to fraction form
    18,774.18/28,123.61 = 8,922.96/x
  3. Step 3: Cross multiply
    18,774.18x = 28,123.61 × 8,922.96
  4. Step 4: Simplify right side
    18,774.18x = 250,945,802.47
  5. Step 5: Solve for x
    x = 250,945,802.47/18,774.18
  6. Step 6: Final answer
    x = 13,366.54

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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.