Home / 8,521.37-12,770.24-6,439.67

Finding the Fourth Proportional to 8,521.37, 12,770.24 and 6,439.67

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Solution

The fourth proportional to 8,521.37, 12,770.24 and 6,439.67 is: 9,650.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.37 : 12,770.24 = 6,439.67 : x
  2. Step 2: Convert to fraction form
    8,521.37/12,770.24 = 6,439.67/x
  3. Step 3: Cross multiply
    8,521.37x = 12,770.24 × 6,439.67
  4. Step 4: Simplify right side
    8,521.37x = 82,236,035.37
  5. Step 5: Solve for x
    x = 82,236,035.37/8,521.37
  6. Step 6: Final answer
    x = 9,650.57

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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.