Home / 10,919.52-15,069.12-6,202.80

Finding the Fourth Proportional to 10,919.52, 15,069.12 and 6,202.80

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Solution

The fourth proportional to 10,919.52, 15,069.12 and 6,202.80 is: 8,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.52 : 15,069.12 = 6,202.80 : x
  2. Step 2: Convert to fraction form
    10,919.52/15,069.12 = 6,202.80/x
  3. Step 3: Cross multiply
    10,919.52x = 15,069.12 × 6,202.80
  4. Step 4: Simplify right side
    10,919.52x = 93,470,737.54
  5. Step 5: Solve for x
    x = 93,470,737.54/10,919.52
  6. Step 6: Final answer
    x = 8,559.97

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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.