Home / 18,642.02-25,729.52-11,930.49

Finding the Fourth Proportional to 18,642.02, 25,729.52 and 11,930.49

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Solution

The fourth proportional to 18,642.02, 25,729.52 and 11,930.49 is: 16,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.02 : 25,729.52 = 11,930.49 : x
  2. Step 2: Convert to fraction form
    18,642.02/25,729.52 = 11,930.49/x
  3. Step 3: Cross multiply
    18,642.02x = 25,729.52 × 11,930.49
  4. Step 4: Simplify right side
    18,642.02x = 306,965,721.41
  5. Step 5: Solve for x
    x = 306,965,721.41/18,642.02
  6. Step 6: Final answer
    x = 16,466.34

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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.