Home / 7,121.98-9,823.71-4,467.07

Finding the Fourth Proportional to 7,121.98, 9,823.71 and 4,467.07

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Solution

The fourth proportional to 7,121.98, 9,823.71 and 4,467.07 is: 6,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.98 : 9,823.71 = 4,467.07 : x
  2. Step 2: Convert to fraction form
    7,121.98/9,823.71 = 4,467.07/x
  3. Step 3: Cross multiply
    7,121.98x = 9,823.71 × 4,467.07
  4. Step 4: Simplify right side
    7,121.98x = 43,883,200.23
  5. Step 5: Solve for x
    x = 43,883,200.23/7,121.98
  6. Step 6: Final answer
    x = 6,161.66

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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.