Home / 12,012.05-16,575.46-8,238.45

Finding the Fourth Proportional to 12,012.05, 16,575.46 and 8,238.45

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Solution

The fourth proportional to 12,012.05, 16,575.46 and 8,238.45 is: 11,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.05 : 16,575.46 = 8,238.45 : x
  2. Step 2: Convert to fraction form
    12,012.05/16,575.46 = 8,238.45/x
  3. Step 3: Cross multiply
    12,012.05x = 16,575.46 × 8,238.45
  4. Step 4: Simplify right side
    12,012.05x = 136,556,098.44
  5. Step 5: Solve for x
    x = 136,556,098.44/12,012.05
  6. Step 6: Final answer
    x = 11,368.26

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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.