Home / 8,503.20-12,759.72-3,572.40

Finding the Fourth Proportional to 8,503.20, 12,759.72 and 3,572.40

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Solution

The fourth proportional to 8,503.20, 12,759.72 and 3,572.40 is: 5,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.20 : 12,759.72 = 3,572.40 : x
  2. Step 2: Convert to fraction form
    8,503.20/12,759.72 = 3,572.40/x
  3. Step 3: Cross multiply
    8,503.20x = 12,759.72 × 3,572.40
  4. Step 4: Simplify right side
    8,503.20x = 45,582,823.73
  5. Step 5: Solve for x
    x = 45,582,823.73/8,503.20
  6. Step 6: Final answer
    x = 5,360.67

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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.