Home / 15,627.96-21,544.16-11,143.94

Finding the Fourth Proportional to 15,627.96, 21,544.16 and 11,143.94

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Solution

The fourth proportional to 15,627.96, 21,544.16 and 11,143.94 is: 15,362.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.96 : 21,544.16 = 11,143.94 : x
  2. Step 2: Convert to fraction form
    15,627.96/21,544.16 = 11,143.94/x
  3. Step 3: Cross multiply
    15,627.96x = 21,544.16 × 11,143.94
  4. Step 4: Simplify right side
    15,627.96x = 240,086,826.39
  5. Step 5: Solve for x
    x = 240,086,826.39/15,627.96
  6. Step 6: Final answer
    x = 15,362.65

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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.