Home / 11,899.80-17,848.35-3,135.40

Finding the Fourth Proportional to 11,899.80, 17,848.35 and 3,135.40

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Solution

The fourth proportional to 11,899.80, 17,848.35 and 3,135.40 is: 4,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.80 : 17,848.35 = 3,135.40 : x
  2. Step 2: Convert to fraction form
    11,899.80/17,848.35 = 3,135.40/x
  3. Step 3: Cross multiply
    11,899.80x = 17,848.35 × 3,135.40
  4. Step 4: Simplify right side
    11,899.80x = 55,961,671.97
  5. Step 5: Solve for x
    x = 55,961,671.97/11,899.80
  6. Step 6: Final answer
    x = 4,702.74

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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.