Home / 8,450.30-12,644.07-5,315.67

Finding the Fourth Proportional to 8,450.30, 12,644.07 and 5,315.67

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Solution

The fourth proportional to 8,450.30, 12,644.07 and 5,315.67 is: 7,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.30 : 12,644.07 = 5,315.67 : x
  2. Step 2: Convert to fraction form
    8,450.30/12,644.07 = 5,315.67/x
  3. Step 3: Cross multiply
    8,450.30x = 12,644.07 × 5,315.67
  4. Step 4: Simplify right side
    8,450.30x = 67,211,683.64
  5. Step 5: Solve for x
    x = 67,211,683.64/8,450.30
  6. Step 6: Final answer
    x = 7,953.76

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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.