Home / 7,480.65-11,215.04-3,784.35

Finding the Fourth Proportional to 7,480.65, 11,215.04 and 3,784.35

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Solution

The fourth proportional to 7,480.65, 11,215.04 and 3,784.35 is: 5,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.65 : 11,215.04 = 3,784.35 : x
  2. Step 2: Convert to fraction form
    7,480.65/11,215.04 = 3,784.35/x
  3. Step 3: Cross multiply
    7,480.65x = 11,215.04 × 3,784.35
  4. Step 4: Simplify right side
    7,480.65x = 42,441,617.70
  5. Step 5: Solve for x
    x = 42,441,617.70/7,480.65
  6. Step 6: Final answer
    x = 5,673.52

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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.