Home / 12,258.66-16,912.40-7,476.95

Finding the Fourth Proportional to 12,258.66, 16,912.40 and 7,476.95

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Solution

The fourth proportional to 12,258.66, 16,912.40 and 7,476.95 is: 10,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.66 : 16,912.40 = 7,476.95 : x
  2. Step 2: Convert to fraction form
    12,258.66/16,912.40 = 7,476.95/x
  3. Step 3: Cross multiply
    12,258.66x = 16,912.40 × 7,476.95
  4. Step 4: Simplify right side
    12,258.66x = 126,453,174.08
  5. Step 5: Solve for x
    x = 126,453,174.08/12,258.66
  6. Step 6: Final answer
    x = 10,315.42

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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.