Home / 14,889.90-20,548.39-8,175.55

Finding the Fourth Proportional to 14,889.90, 20,548.39 and 8,175.55

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Solution

The fourth proportional to 14,889.90, 20,548.39 and 8,175.55 is: 11,282.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.90 : 20,548.39 = 8,175.55 : x
  2. Step 2: Convert to fraction form
    14,889.90/20,548.39 = 8,175.55/x
  3. Step 3: Cross multiply
    14,889.90x = 20,548.39 × 8,175.55
  4. Step 4: Simplify right side
    14,889.90x = 167,994,360.42
  5. Step 5: Solve for x
    x = 167,994,360.42/14,889.90
  6. Step 6: Final answer
    x = 11,282.44

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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.