Home / 7,847.90-11,752.41-4,377.86

Finding the Fourth Proportional to 7,847.90, 11,752.41 and 4,377.86

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Solution

The fourth proportional to 7,847.90, 11,752.41 and 4,377.86 is: 6,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.90 : 11,752.41 = 4,377.86 : x
  2. Step 2: Convert to fraction form
    7,847.90/11,752.41 = 4,377.86/x
  3. Step 3: Cross multiply
    7,847.90x = 11,752.41 × 4,377.86
  4. Step 4: Simplify right side
    7,847.90x = 51,450,405.64
  5. Step 5: Solve for x
    x = 51,450,405.64/7,847.90
  6. Step 6: Final answer
    x = 6,555.95

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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.