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Finding the Fourth Proportional to 12,808.82, 17,604.61 and 11,307.62

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Solution

The fourth proportional to 12,808.82, 17,604.61 and 11,307.62 is: 15,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.82 : 17,604.61 = 11,307.62 : x
  2. Step 2: Convert to fraction form
    12,808.82/17,604.61 = 11,307.62/x
  3. Step 3: Cross multiply
    12,808.82x = 17,604.61 × 11,307.62
  4. Step 4: Simplify right side
    12,808.82x = 199,066,240.13
  5. Step 5: Solve for x
    x = 199,066,240.13/12,808.82
  6. Step 6: Final answer
    x = 15,541.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.