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Finding the Fourth Proportional to 11,609.44, 16,012.56 and 7,361.80

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Solution

The fourth proportional to 11,609.44, 16,012.56 and 7,361.80 is: 10,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,609.44 : 16,012.56 = 7,361.80 : x
  2. Step 2: Convert to fraction form
    11,609.44/16,012.56 = 7,361.80/x
  3. Step 3: Cross multiply
    11,609.44x = 16,012.56 × 7,361.80
  4. Step 4: Simplify right side
    11,609.44x = 117,881,264.21
  5. Step 5: Solve for x
    x = 117,881,264.21/11,609.44
  6. Step 6: Final answer
    x = 10,153.91

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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.