Home / 12,883.78-19,302.94-11,284.66

Finding the Fourth Proportional to 12,883.78, 19,302.94 and 11,284.66

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Solution

The fourth proportional to 12,883.78, 19,302.94 and 11,284.66 is: 16,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.78 : 19,302.94 = 11,284.66 : x
  2. Step 2: Convert to fraction form
    12,883.78/19,302.94 = 11,284.66/x
  3. Step 3: Cross multiply
    12,883.78x = 19,302.94 × 11,284.66
  4. Step 4: Simplify right side
    12,883.78x = 217,827,114.90
  5. Step 5: Solve for x
    x = 217,827,114.90/12,883.78
  6. Step 6: Final answer
    x = 16,907.08

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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.