Home / 10,699.87-16,055.40-4,379.44

Finding the Fourth Proportional to 10,699.87, 16,055.40 and 4,379.44

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Solution

The fourth proportional to 10,699.87, 16,055.40 and 4,379.44 is: 6,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,699.87 : 16,055.40 = 4,379.44 : x
  2. Step 2: Convert to fraction form
    10,699.87/16,055.40 = 4,379.44/x
  3. Step 3: Cross multiply
    10,699.87x = 16,055.40 × 4,379.44
  4. Step 4: Simplify right side
    10,699.87x = 70,313,660.98
  5. Step 5: Solve for x
    x = 70,313,660.98/10,699.87
  6. Step 6: Final answer
    x = 6,571.45

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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.