Home / 15,287.10-21,067.64-11,924.60

Finding the Fourth Proportional to 15,287.10, 21,067.64 and 11,924.60

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Solution

The fourth proportional to 15,287.10, 21,067.64 and 11,924.60 is: 16,433.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.10 : 21,067.64 = 11,924.60 : x
  2. Step 2: Convert to fraction form
    15,287.10/21,067.64 = 11,924.60/x
  3. Step 3: Cross multiply
    15,287.10x = 21,067.64 × 11,924.60
  4. Step 4: Simplify right side
    15,287.10x = 251,223,179.94
  5. Step 5: Solve for x
    x = 251,223,179.94/15,287.10
  6. Step 6: Final answer
    x = 16,433.67

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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.