Home / 7,865.91-10,855.01-4,329.15

Finding the Fourth Proportional to 7,865.91, 10,855.01 and 4,329.15

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Solution

The fourth proportional to 7,865.91, 10,855.01 and 4,329.15 is: 5,974.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.91 : 10,855.01 = 4,329.15 : x
  2. Step 2: Convert to fraction form
    7,865.91/10,855.01 = 4,329.15/x
  3. Step 3: Cross multiply
    7,865.91x = 10,855.01 × 4,329.15
  4. Step 4: Simplify right side
    7,865.91x = 46,992,936.66
  5. Step 5: Solve for x
    x = 46,992,936.66/7,865.91
  6. Step 6: Final answer
    x = 5,974.25

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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.