Home / 13,753.57-20,638.36-5,855.67

Finding the Fourth Proportional to 13,753.57, 20,638.36 and 5,855.67

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Solution

The fourth proportional to 13,753.57, 20,638.36 and 5,855.67 is: 8,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.57 : 20,638.36 = 5,855.67 : x
  2. Step 2: Convert to fraction form
    13,753.57/20,638.36 = 5,855.67/x
  3. Step 3: Cross multiply
    13,753.57x = 20,638.36 × 5,855.67
  4. Step 4: Simplify right side
    13,753.57x = 120,851,425.50
  5. Step 5: Solve for x
    x = 120,851,425.50/13,753.57
  6. Step 6: Final answer
    x = 8,786.91

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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.