Home / 8,621.63-12,924.74-3,688.73

Finding the Fourth Proportional to 8,621.63, 12,924.74 and 3,688.73

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Solution

The fourth proportional to 8,621.63, 12,924.74 and 3,688.73 is: 5,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.63 : 12,924.74 = 3,688.73 : x
  2. Step 2: Convert to fraction form
    8,621.63/12,924.74 = 3,688.73/x
  3. Step 3: Cross multiply
    8,621.63x = 12,924.74 × 3,688.73
  4. Step 4: Simplify right side
    8,621.63x = 47,675,793.11
  5. Step 5: Solve for x
    x = 47,675,793.11/8,621.63
  6. Step 6: Final answer
    x = 5,529.79

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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.