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Finding the Fourth Proportional to 17,390.40, 26,090.40 and 7,009.44

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Solution

The fourth proportional to 17,390.40, 26,090.40 and 7,009.44 is: 10,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.40 : 26,090.40 = 7,009.44 : x
  2. Step 2: Convert to fraction form
    17,390.40/26,090.40 = 7,009.44/x
  3. Step 3: Cross multiply
    17,390.40x = 26,090.40 × 7,009.44
  4. Step 4: Simplify right side
    17,390.40x = 182,879,093.38
  5. Step 5: Solve for x
    x = 182,879,093.38/17,390.40
  6. Step 6: Final answer
    x = 10,516.09

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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.