Home / 13,902.09-20,855.76-5,582.76

Finding the Fourth Proportional to 13,902.09, 20,855.76 and 5,582.76

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Solution

The fourth proportional to 13,902.09, 20,855.76 and 5,582.76 is: 8,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.09 : 20,855.76 = 5,582.76 : x
  2. Step 2: Convert to fraction form
    13,902.09/20,855.76 = 5,582.76/x
  3. Step 3: Cross multiply
    13,902.09x = 20,855.76 × 5,582.76
  4. Step 4: Simplify right side
    13,902.09x = 116,432,702.70
  5. Step 5: Solve for x
    x = 116,432,702.70/13,902.09
  6. Step 6: Final answer
    x = 8,375.19

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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.