Home / 7,621.25-10,511.42-5,102.55

Finding the Fourth Proportional to 7,621.25, 10,511.42 and 5,102.55

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Solution

The fourth proportional to 7,621.25, 10,511.42 and 5,102.55 is: 7,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.25 : 10,511.42 = 5,102.55 : x
  2. Step 2: Convert to fraction form
    7,621.25/10,511.42 = 5,102.55/x
  3. Step 3: Cross multiply
    7,621.25x = 10,511.42 × 5,102.55
  4. Step 4: Simplify right side
    7,621.25x = 53,635,020.61
  5. Step 5: Solve for x
    x = 53,635,020.61/7,621.25
  6. Step 6: Final answer
    x = 7,037.57

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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.