Home / 7,621.28-10,517.76-4,636.60

Finding the Fourth Proportional to 7,621.28, 10,517.76 and 4,636.60

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Solution

The fourth proportional to 7,621.28, 10,517.76 and 4,636.60 is: 6,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.28 : 10,517.76 = 4,636.60 : x
  2. Step 2: Convert to fraction form
    7,621.28/10,517.76 = 4,636.60/x
  3. Step 3: Cross multiply
    7,621.28x = 10,517.76 × 4,636.60
  4. Step 4: Simplify right side
    7,621.28x = 48,766,646.02
  5. Step 5: Solve for x
    x = 48,766,646.02/7,621.28
  6. Step 6: Final answer
    x = 6,398.75

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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.