Home / 7,621.56-10,517.04-4,639.68

Finding the Fourth Proportional to 7,621.56, 10,517.04 and 4,639.68

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Solution

The fourth proportional to 7,621.56, 10,517.04 and 4,639.68 is: 6,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.56 : 10,517.04 = 4,639.68 : x
  2. Step 2: Convert to fraction form
    7,621.56/10,517.04 = 4,639.68/x
  3. Step 3: Cross multiply
    7,621.56x = 10,517.04 × 4,639.68
  4. Step 4: Simplify right side
    7,621.56x = 48,795,700.15
  5. Step 5: Solve for x
    x = 48,795,700.15/7,621.56
  6. Step 6: Final answer
    x = 6,402.32

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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.