Home / 7,469.90-11,208.71-3,312.77

Finding the Fourth Proportional to 7,469.90, 11,208.71 and 3,312.77

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Solution

The fourth proportional to 7,469.90, 11,208.71 and 3,312.77 is: 4,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.90 : 11,208.71 = 3,312.77 : x
  2. Step 2: Convert to fraction form
    7,469.90/11,208.71 = 3,312.77/x
  3. Step 3: Cross multiply
    7,469.90x = 11,208.71 × 3,312.77
  4. Step 4: Simplify right side
    7,469.90x = 37,131,878.23
  5. Step 5: Solve for x
    x = 37,131,878.23/7,469.90
  6. Step 6: Final answer
    x = 4,970.87

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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.