Home / 12,586.44-18,866.40-4,258.56

Finding the Fourth Proportional to 12,586.44, 18,866.40 and 4,258.56

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Solution

The fourth proportional to 12,586.44, 18,866.40 and 4,258.56 is: 6,383.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.44 : 18,866.40 = 4,258.56 : x
  2. Step 2: Convert to fraction form
    12,586.44/18,866.40 = 4,258.56/x
  3. Step 3: Cross multiply
    12,586.44x = 18,866.40 × 4,258.56
  4. Step 4: Simplify right side
    12,586.44x = 80,343,696.38
  5. Step 5: Solve for x
    x = 80,343,696.38/12,586.44
  6. Step 6: Final answer
    x = 6,383.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.