Home / 8,365.20-12,549.36-3,174.72

Finding the Fourth Proportional to 8,365.20, 12,549.36 and 3,174.72

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Solution

The fourth proportional to 8,365.20, 12,549.36 and 3,174.72 is: 4,762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.20 : 12,549.36 = 3,174.72 : x
  2. Step 2: Convert to fraction form
    8,365.20/12,549.36 = 3,174.72/x
  3. Step 3: Cross multiply
    8,365.20x = 12,549.36 × 3,174.72
  4. Step 4: Simplify right side
    8,365.20x = 39,840,704.18
  5. Step 5: Solve for x
    x = 39,840,704.18/8,365.20
  6. Step 6: Final answer
    x = 4,762.67

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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.