Home / 10,678.25-16,015.88-3,280.65

Finding the Fourth Proportional to 10,678.25, 16,015.88 and 3,280.65

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Solution

The fourth proportional to 10,678.25, 16,015.88 and 3,280.65 is: 4,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.25 : 16,015.88 = 3,280.65 : x
  2. Step 2: Convert to fraction form
    10,678.25/16,015.88 = 3,280.65/x
  3. Step 3: Cross multiply
    10,678.25x = 16,015.88 × 3,280.65
  4. Step 4: Simplify right side
    10,678.25x = 52,542,480.32
  5. Step 5: Solve for x
    x = 52,542,480.32/10,678.25
  6. Step 6: Final answer
    x = 4,920.52

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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.