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Finding the Fourth Proportional to 11,504.80, 17,273.40 and 7,130.80

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Solution

The fourth proportional to 11,504.80, 17,273.40 and 7,130.80 is: 10,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,504.80 : 17,273.40 = 7,130.80 : x
  2. Step 2: Convert to fraction form
    11,504.80/17,273.40 = 7,130.80/x
  3. Step 3: Cross multiply
    11,504.80x = 17,273.40 × 7,130.80
  4. Step 4: Simplify right side
    11,504.80x = 123,173,160.72
  5. Step 5: Solve for x
    x = 123,173,160.72/11,504.80
  6. Step 6: Final answer
    x = 10,706.24

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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.