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Finding the Fourth Proportional to 12,808.89, 17,675.71 and 9,450.49

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Solution

The fourth proportional to 12,808.89, 17,675.71 and 9,450.49 is: 13,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.89 : 17,675.71 = 9,450.49 : x
  2. Step 2: Convert to fraction form
    12,808.89/17,675.71 = 9,450.49/x
  3. Step 3: Cross multiply
    12,808.89x = 17,675.71 × 9,450.49
  4. Step 4: Simplify right side
    12,808.89x = 167,044,120.60
  5. Step 5: Solve for x
    x = 167,044,120.60/12,808.89
  6. Step 6: Final answer
    x = 13,041.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.