Home / 7,621.79-10,517.92-4,435.65

Finding the Fourth Proportional to 7,621.79, 10,517.92 and 4,435.65

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Solution

The fourth proportional to 7,621.79, 10,517.92 and 4,435.65 is: 6,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.79 : 10,517.92 = 4,435.65 : x
  2. Step 2: Convert to fraction form
    7,621.79/10,517.92 = 4,435.65/x
  3. Step 3: Cross multiply
    7,621.79x = 10,517.92 × 4,435.65
  4. Step 4: Simplify right side
    7,621.79x = 46,653,800.76
  5. Step 5: Solve for x
    x = 46,653,800.76/7,621.79
  6. Step 6: Final answer
    x = 6,121.11

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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.