Home / 15,154.78-20,893.21-10,611.35

Finding the Fourth Proportional to 15,154.78, 20,893.21 and 10,611.35

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Solution

The fourth proportional to 15,154.78, 20,893.21 and 10,611.35 is: 14,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.78 : 20,893.21 = 10,611.35 : x
  2. Step 2: Convert to fraction form
    15,154.78/20,893.21 = 10,611.35/x
  3. Step 3: Cross multiply
    15,154.78x = 20,893.21 × 10,611.35
  4. Step 4: Simplify right side
    15,154.78x = 221,705,163.93
  5. Step 5: Solve for x
    x = 221,705,163.93/15,154.78
  6. Step 6: Final answer
    x = 14,629.39

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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.