Home / 8,124.90-11,211.78-4,767.85

Finding the Fourth Proportional to 8,124.90, 11,211.78 and 4,767.85

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Solution

The fourth proportional to 8,124.90, 11,211.78 and 4,767.85 is: 6,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.90 : 11,211.78 = 4,767.85 : x
  2. Step 2: Convert to fraction form
    8,124.90/11,211.78 = 4,767.85/x
  3. Step 3: Cross multiply
    8,124.90x = 11,211.78 × 4,767.85
  4. Step 4: Simplify right side
    8,124.90x = 53,456,085.27
  5. Step 5: Solve for x
    x = 53,456,085.27/8,124.90
  6. Step 6: Final answer
    x = 6,579.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.