Home / 12,450.61-17,181.66-7,146.55

Finding the Fourth Proportional to 12,450.61, 17,181.66 and 7,146.55

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Solution

The fourth proportional to 12,450.61, 17,181.66 and 7,146.55 is: 9,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.61 : 17,181.66 = 7,146.55 : x
  2. Step 2: Convert to fraction form
    12,450.61/17,181.66 = 7,146.55/x
  3. Step 3: Cross multiply
    12,450.61x = 17,181.66 × 7,146.55
  4. Step 4: Simplify right side
    12,450.61x = 122,789,592.27
  5. Step 5: Solve for x
    x = 122,789,592.27/12,450.61
  6. Step 6: Final answer
    x = 9,862.13

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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.