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Finding the Fourth Proportional to 11,137.20, 16,705.80 and 11,060.40

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Solution

The fourth proportional to 11,137.20, 16,705.80 and 11,060.40 is: 16,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.20 : 16,705.80 = 11,060.40 : x
  2. Step 2: Convert to fraction form
    11,137.20/16,705.80 = 11,060.40/x
  3. Step 3: Cross multiply
    11,137.20x = 16,705.80 × 11,060.40
  4. Step 4: Simplify right side
    11,137.20x = 184,772,830.32
  5. Step 5: Solve for x
    x = 184,772,830.32/11,137.20
  6. Step 6: Final answer
    x = 16,590.60

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