Home / 15,350.51-21,183.48-8,636.14

Finding the Fourth Proportional to 15,350.51, 21,183.48 and 8,636.14

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Solution

The fourth proportional to 15,350.51, 21,183.48 and 8,636.14 is: 11,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.51 : 21,183.48 = 8,636.14 : x
  2. Step 2: Convert to fraction form
    15,350.51/21,183.48 = 8,636.14/x
  3. Step 3: Cross multiply
    15,350.51x = 21,183.48 × 8,636.14
  4. Step 4: Simplify right side
    15,350.51x = 182,943,525.45
  5. Step 5: Solve for x
    x = 182,943,525.45/15,350.51
  6. Step 6: Final answer
    x = 11,917.75

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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.