Home / 13,877.70-20,816.75-4,517.77

Finding the Fourth Proportional to 13,877.70, 20,816.75 and 4,517.77

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Solution

The fourth proportional to 13,877.70, 20,816.75 and 4,517.77 is: 6,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.70 : 20,816.75 = 4,517.77 : x
  2. Step 2: Convert to fraction form
    13,877.70/20,816.75 = 4,517.77/x
  3. Step 3: Cross multiply
    13,877.70x = 20,816.75 × 4,517.77
  4. Step 4: Simplify right side
    13,877.70x = 94,045,230.96
  5. Step 5: Solve for x
    x = 94,045,230.96/13,877.70
  6. Step 6: Final answer
    x = 6,776.72

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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.