Home / 15,350.39-21,183.31-8,636.02

Finding the Fourth Proportional to 15,350.39, 21,183.31 and 8,636.02

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Solution

The fourth proportional to 15,350.39, 21,183.31 and 8,636.02 is: 11,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.39 : 21,183.31 = 8,636.02 : x
  2. Step 2: Convert to fraction form
    15,350.39/21,183.31 = 8,636.02/x
  3. Step 3: Cross multiply
    15,350.39x = 21,183.31 × 8,636.02
  4. Step 4: Simplify right side
    15,350.39x = 182,939,488.83
  5. Step 5: Solve for x
    x = 182,939,488.83/15,350.39
  6. Step 6: Final answer
    x = 11,917.58

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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.