Home / 7,621.52-10,517.68-4,479.52

Finding the Fourth Proportional to 7,621.52, 10,517.68 and 4,479.52

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Solution

The fourth proportional to 7,621.52, 10,517.68 and 4,479.52 is: 6,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.52 : 10,517.68 = 4,479.52 : x
  2. Step 2: Convert to fraction form
    7,621.52/10,517.68 = 4,479.52/x
  3. Step 3: Cross multiply
    7,621.52x = 10,517.68 × 4,479.52
  4. Step 4: Simplify right side
    7,621.52x = 47,114,157.91
  5. Step 5: Solve for x
    x = 47,114,157.91/7,621.52
  6. Step 6: Final answer
    x = 6,181.73

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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.