Home / 7,219.98-10,836.16-5,145.08

Finding the Fourth Proportional to 7,219.98, 10,836.16 and 5,145.08

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Solution

The fourth proportional to 7,219.98, 10,836.16 and 5,145.08 is: 7,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.98 : 10,836.16 = 5,145.08 : x
  2. Step 2: Convert to fraction form
    7,219.98/10,836.16 = 5,145.08/x
  3. Step 3: Cross multiply
    7,219.98x = 10,836.16 × 5,145.08
  4. Step 4: Simplify right side
    7,219.98x = 55,752,843.05
  5. Step 5: Solve for x
    x = 55,752,843.05/7,219.98
  6. Step 6: Final answer
    x = 7,722.02

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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.