Home / 10,921.59-15,067.06-6,885.23

Finding the Fourth Proportional to 10,921.59, 15,067.06 and 6,885.23

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Solution

The fourth proportional to 10,921.59, 15,067.06 and 6,885.23 is: 9,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.59 : 15,067.06 = 6,885.23 : x
  2. Step 2: Convert to fraction form
    10,921.59/15,067.06 = 6,885.23/x
  3. Step 3: Cross multiply
    10,921.59x = 15,067.06 × 6,885.23
  4. Step 4: Simplify right side
    10,921.59x = 103,740,257.43
  5. Step 5: Solve for x
    x = 103,740,257.43/10,921.59
  6. Step 6: Final answer
    x = 9,498.64

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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.