Home / 8,155.87-12,235.61-2,609.67

Finding the Fourth Proportional to 8,155.87, 12,235.61 and 2,609.67

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Solution

The fourth proportional to 8,155.87, 12,235.61 and 2,609.67 is: 3,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.87 : 12,235.61 = 2,609.67 : x
  2. Step 2: Convert to fraction form
    8,155.87/12,235.61 = 2,609.67/x
  3. Step 3: Cross multiply
    8,155.87x = 12,235.61 × 2,609.67
  4. Step 4: Simplify right side
    8,155.87x = 31,930,904.35
  5. Step 5: Solve for x
    x = 31,930,904.35/8,155.87
  6. Step 6: Final answer
    x = 3,915.08

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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.