Home / 7,621.20-10,516.29-4,217.73

Finding the Fourth Proportional to 7,621.20, 10,516.29 and 4,217.73

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Solution

The fourth proportional to 7,621.20, 10,516.29 and 4,217.73 is: 5,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.20 : 10,516.29 = 4,217.73 : x
  2. Step 2: Convert to fraction form
    7,621.20/10,516.29 = 4,217.73/x
  3. Step 3: Cross multiply
    7,621.20x = 10,516.29 × 4,217.73
  4. Step 4: Simplify right side
    7,621.20x = 44,354,871.82
  5. Step 5: Solve for x
    x = 44,354,871.82/7,621.20
  6. Step 6: Final answer
    x = 5,819.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.