Home / 7,830.07-10,805.09-4,472.22

Finding the Fourth Proportional to 7,830.07, 10,805.09 and 4,472.22

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Solution

The fourth proportional to 7,830.07, 10,805.09 and 4,472.22 is: 6,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.07 : 10,805.09 = 4,472.22 : x
  2. Step 2: Convert to fraction form
    7,830.07/10,805.09 = 4,472.22/x
  3. Step 3: Cross multiply
    7,830.07x = 10,805.09 × 4,472.22
  4. Step 4: Simplify right side
    7,830.07x = 48,322,739.60
  5. Step 5: Solve for x
    x = 48,322,739.60/7,830.07
  6. Step 6: Final answer
    x = 6,171.43

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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.