Home / 13,153.16-19,729.58-3,918.44

Finding the Fourth Proportional to 13,153.16, 19,729.58 and 3,918.44

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Solution

The fourth proportional to 13,153.16, 19,729.58 and 3,918.44 is: 5,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.16 : 19,729.58 = 3,918.44 : x
  2. Step 2: Convert to fraction form
    13,153.16/19,729.58 = 3,918.44/x
  3. Step 3: Cross multiply
    13,153.16x = 19,729.58 × 3,918.44
  4. Step 4: Simplify right side
    13,153.16x = 77,309,175.46
  5. Step 5: Solve for x
    x = 77,309,175.46/13,153.16
  6. Step 6: Final answer
    x = 5,877.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.