Home / 15,350.89-21,183.99-8,636.52

Finding the Fourth Proportional to 15,350.89, 21,183.99 and 8,636.52

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Solution

The fourth proportional to 15,350.89, 21,183.99 and 8,636.52 is: 11,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.89 : 21,183.99 = 8,636.52 : x
  2. Step 2: Convert to fraction form
    15,350.89/21,183.99 = 8,636.52/x
  3. Step 3: Cross multiply
    15,350.89x = 21,183.99 × 8,636.52
  4. Step 4: Simplify right side
    15,350.89x = 182,955,953.31
  5. Step 5: Solve for x
    x = 182,955,953.31/15,350.89
  6. Step 6: Final answer
    x = 11,918.26

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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.