Home / 13,772.67-20,642.59-7,197.09

Finding the Fourth Proportional to 13,772.67, 20,642.59 and 7,197.09

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Solution

The fourth proportional to 13,772.67, 20,642.59 and 7,197.09 is: 10,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.67 : 20,642.59 = 7,197.09 : x
  2. Step 2: Convert to fraction form
    13,772.67/20,642.59 = 7,197.09/x
  3. Step 3: Cross multiply
    13,772.67x = 20,642.59 × 7,197.09
  4. Step 4: Simplify right side
    13,772.67x = 148,566,578.06
  5. Step 5: Solve for x
    x = 148,566,578.06/13,772.67
  6. Step 6: Final answer
    x = 10,787.06

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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.