Home / 13,806.02-20,709.75-3,946.79

Finding the Fourth Proportional to 13,806.02, 20,709.75 and 3,946.79

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Solution

The fourth proportional to 13,806.02, 20,709.75 and 3,946.79 is: 5,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.02 : 20,709.75 = 3,946.79 : x
  2. Step 2: Convert to fraction form
    13,806.02/20,709.75 = 3,946.79/x
  3. Step 3: Cross multiply
    13,806.02x = 20,709.75 × 3,946.79
  4. Step 4: Simplify right side
    13,806.02x = 81,737,000.92
  5. Step 5: Solve for x
    x = 81,737,000.92/13,806.02
  6. Step 6: Final answer
    x = 5,920.39

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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.