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Finding the Fourth Proportional to 12,466.61, 17,201.41 and 7,931.09

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Solution

The fourth proportional to 12,466.61, 17,201.41 and 7,931.09 is: 10,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.61 : 17,201.41 = 7,931.09 : x
  2. Step 2: Convert to fraction form
    12,466.61/17,201.41 = 7,931.09/x
  3. Step 3: Cross multiply
    12,466.61x = 17,201.41 × 7,931.09
  4. Step 4: Simplify right side
    12,466.61x = 136,425,950.25
  5. Step 5: Solve for x
    x = 136,425,950.25/12,466.61
  6. Step 6: Final answer
    x = 10,943.31

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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.