Home / 12,237.66-18,357.70-3,915.58

Finding the Fourth Proportional to 12,237.66, 18,357.70 and 3,915.58

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Solution

The fourth proportional to 12,237.66, 18,357.70 and 3,915.58 is: 5,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.66 : 18,357.70 = 3,915.58 : x
  2. Step 2: Convert to fraction form
    12,237.66/18,357.70 = 3,915.58/x
  3. Step 3: Cross multiply
    12,237.66x = 18,357.70 × 3,915.58
  4. Step 4: Simplify right side
    12,237.66x = 71,881,042.97
  5. Step 5: Solve for x
    x = 71,881,042.97/12,237.66
  6. Step 6: Final answer
    x = 5,873.76

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1.5x scale

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.