Home / 8,260.16-12,390.74-3,329.08

Finding the Fourth Proportional to 8,260.16, 12,390.74 and 3,329.08

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Solution

The fourth proportional to 8,260.16, 12,390.74 and 3,329.08 is: 4,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.16 : 12,390.74 = 3,329.08 : x
  2. Step 2: Convert to fraction form
    8,260.16/12,390.74 = 3,329.08/x
  3. Step 3: Cross multiply
    8,260.16x = 12,390.74 × 3,329.08
  4. Step 4: Simplify right side
    8,260.16x = 41,249,764.72
  5. Step 5: Solve for x
    x = 41,249,764.72/8,260.16
  6. Step 6: Final answer
    x = 4,993.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.