Home / 8,456.35-11,668.40-5,310.31

Finding the Fourth Proportional to 8,456.35, 11,668.40 and 5,310.31

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Solution

The fourth proportional to 8,456.35, 11,668.40 and 5,310.31 is: 7,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.35 : 11,668.40 = 5,310.31 : x
  2. Step 2: Convert to fraction form
    8,456.35/11,668.40 = 5,310.31/x
  3. Step 3: Cross multiply
    8,456.35x = 11,668.40 × 5,310.31
  4. Step 4: Simplify right side
    8,456.35x = 61,962,821.20
  5. Step 5: Solve for x
    x = 61,962,821.20/8,456.35
  6. Step 6: Final answer
    x = 7,327.37

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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.