Home / 7,683.12-11,519.42-2,752.65

Finding the Fourth Proportional to 7,683.12, 11,519.42 and 2,752.65

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Solution

The fourth proportional to 7,683.12, 11,519.42 and 2,752.65 is: 4,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,683.12 : 11,519.42 = 2,752.65 : x
  2. Step 2: Convert to fraction form
    7,683.12/11,519.42 = 2,752.65/x
  3. Step 3: Cross multiply
    7,683.12x = 11,519.42 × 2,752.65
  4. Step 4: Simplify right side
    7,683.12x = 31,708,917.70
  5. Step 5: Solve for x
    x = 31,708,917.70/7,683.12
  6. Step 6: Final answer
    x = 4,127.09

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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.