Home / 13,773.90-20,660.85-8,582.70

Finding the Fourth Proportional to 13,773.90, 20,660.85 and 8,582.70

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Solution

The fourth proportional to 13,773.90, 20,660.85 and 8,582.70 is: 12,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.90 : 20,660.85 = 8,582.70 : x
  2. Step 2: Convert to fraction form
    13,773.90/20,660.85 = 8,582.70/x
  3. Step 3: Cross multiply
    13,773.90x = 20,660.85 × 8,582.70
  4. Step 4: Simplify right side
    13,773.90x = 177,325,877.30
  5. Step 5: Solve for x
    x = 177,325,877.30/13,773.90
  6. Step 6: Final answer
    x = 12,874.05

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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.