Home / 14,889.78-20,548.64-8,175.33

Finding the Fourth Proportional to 14,889.78, 20,548.64 and 8,175.33

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Solution

The fourth proportional to 14,889.78, 20,548.64 and 8,175.33 is: 11,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.78 : 20,548.64 = 8,175.33 : x
  2. Step 2: Convert to fraction form
    14,889.78/20,548.64 = 8,175.33/x
  3. Step 3: Cross multiply
    14,889.78x = 20,548.64 × 8,175.33
  4. Step 4: Simplify right side
    14,889.78x = 167,991,933.49
  5. Step 5: Solve for x
    x = 167,991,933.49/14,889.78
  6. Step 6: Final answer
    x = 11,282.37

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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.