Home / 7,747.04-11,620.35-2,816.78

Finding the Fourth Proportional to 7,747.04, 11,620.35 and 2,816.78

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Solution

The fourth proportional to 7,747.04, 11,620.35 and 2,816.78 is: 4,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.04 : 11,620.35 = 2,816.78 : x
  2. Step 2: Convert to fraction form
    7,747.04/11,620.35 = 2,816.78/x
  3. Step 3: Cross multiply
    7,747.04x = 11,620.35 × 2,816.78
  4. Step 4: Simplify right side
    7,747.04x = 32,731,911.37
  5. Step 5: Solve for x
    x = 32,731,911.37/7,747.04
  6. Step 6: Final answer
    x = 4,225.09

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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.