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Finding the Fourth Proportional to 8,900.72, 13,339.20 and 3,703.76

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Solution

The fourth proportional to 8,900.72, 13,339.20 and 3,703.76 is: 5,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.72 : 13,339.20 = 3,703.76 : x
  2. Step 2: Convert to fraction form
    8,900.72/13,339.20 = 3,703.76/x
  3. Step 3: Cross multiply
    8,900.72x = 13,339.20 × 3,703.76
  4. Step 4: Simplify right side
    8,900.72x = 49,405,195.39
  5. Step 5: Solve for x
    x = 49,405,195.39/8,900.72
  6. Step 6: Final answer
    x = 5,550.70

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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.