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Finding the Fourth Proportional to 8,544.40, 12,793.52 and 4,431.76

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Solution

The fourth proportional to 8,544.40, 12,793.52 and 4,431.76 is: 6,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.40 : 12,793.52 = 4,431.76 : x
  2. Step 2: Convert to fraction form
    8,544.40/12,793.52 = 4,431.76/x
  3. Step 3: Cross multiply
    8,544.40x = 12,793.52 × 4,431.76
  4. Step 4: Simplify right side
    8,544.40x = 56,697,810.20
  5. Step 5: Solve for x
    x = 56,697,810.20/8,544.40
  6. Step 6: Final answer
    x = 6,635.67

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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.