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Finding the Fourth Proportional to 17,026.80, 25,532.40 and 9,128.10

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Solution

The fourth proportional to 17,026.80, 25,532.40 and 9,128.10 is: 13,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,026.80 : 25,532.40 = 9,128.10 : x
  2. Step 2: Convert to fraction form
    17,026.80/25,532.40 = 9,128.10/x
  3. Step 3: Cross multiply
    17,026.80x = 25,532.40 × 9,128.10
  4. Step 4: Simplify right side
    17,026.80x = 233,062,300.44
  5. Step 5: Solve for x
    x = 233,062,300.44/17,026.80
  6. Step 6: Final answer
    x = 13,687.97

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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.