Home / 12,439.06-17,169.33-8,466.82

Finding the Fourth Proportional to 12,439.06, 17,169.33 and 8,466.82

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Solution

The fourth proportional to 12,439.06, 17,169.33 and 8,466.82 is: 11,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.06 : 17,169.33 = 8,466.82 : x
  2. Step 2: Convert to fraction form
    12,439.06/17,169.33 = 8,466.82/x
  3. Step 3: Cross multiply
    12,439.06x = 17,169.33 × 8,466.82
  4. Step 4: Simplify right side
    12,439.06x = 145,369,626.63
  5. Step 5: Solve for x
    x = 145,369,626.63/12,439.06
  6. Step 6: Final answer
    x = 11,686.54

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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.