Home / 12,644.44-17,449.23-7,339.75

Finding the Fourth Proportional to 12,644.44, 17,449.23 and 7,339.75

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Solution

The fourth proportional to 12,644.44, 17,449.23 and 7,339.75 is: 10,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.44 : 17,449.23 = 7,339.75 : x
  2. Step 2: Convert to fraction form
    12,644.44/17,449.23 = 7,339.75/x
  3. Step 3: Cross multiply
    12,644.44x = 17,449.23 × 7,339.75
  4. Step 4: Simplify right side
    12,644.44x = 128,072,985.89
  5. Step 5: Solve for x
    x = 128,072,985.89/12,644.44
  6. Step 6: Final answer
    x = 10,128.80

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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.