Home / 7,219.53-10,808.64-5,379.21

Finding the Fourth Proportional to 7,219.53, 10,808.64 and 5,379.21

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Solution

The fourth proportional to 7,219.53, 10,808.64 and 5,379.21 is: 8,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.53 : 10,808.64 = 5,379.21 : x
  2. Step 2: Convert to fraction form
    7,219.53/10,808.64 = 5,379.21/x
  3. Step 3: Cross multiply
    7,219.53x = 10,808.64 × 5,379.21
  4. Step 4: Simplify right side
    7,219.53x = 58,141,944.37
  5. Step 5: Solve for x
    x = 58,141,944.37/7,219.53
  6. Step 6: Final answer
    x = 8,053.43

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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.