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Finding the Fourth Proportional to 17,605.08, 26,407.08 and 7,209

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Solution

The fourth proportional to 17,605.08, 26,407.08 and 7,209 is: 10,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.08 : 26,407.08 = 7,209 : x
  2. Step 2: Convert to fraction form
    17,605.08/26,407.08 = 7,209/x
  3. Step 3: Cross multiply
    17,605.08x = 26,407.08 × 7,209
  4. Step 4: Simplify right side
    17,605.08x = 190,368,639.72
  5. Step 5: Solve for x
    x = 190,368,639.72/17,605.08
  6. Step 6: Final answer
    x = 10,813.28

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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.