Home / 12,147.88-16,764.80-7,433.08

Finding the Fourth Proportional to 12,147.88, 16,764.80 and 7,433.08

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Solution

The fourth proportional to 12,147.88, 16,764.80 and 7,433.08 is: 10,258.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.88 : 16,764.80 = 7,433.08 : x
  2. Step 2: Convert to fraction form
    12,147.88/16,764.80 = 7,433.08/x
  3. Step 3: Cross multiply
    12,147.88x = 16,764.80 × 7,433.08
  4. Step 4: Simplify right side
    12,147.88x = 124,614,099.58
  5. Step 5: Solve for x
    x = 124,614,099.58/12,147.88
  6. Step 6: Final answer
    x = 10,258.09

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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.