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Finding the Fourth Proportional to 11,159.58, 15,361.56 and 9,646.44

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Solution

The fourth proportional to 11,159.58, 15,361.56 and 9,646.44 is: 13,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.58 : 15,361.56 = 9,646.44 : x
  2. Step 2: Convert to fraction form
    11,159.58/15,361.56 = 9,646.44/x
  3. Step 3: Cross multiply
    11,159.58x = 15,361.56 × 9,646.44
  4. Step 4: Simplify right side
    11,159.58x = 148,184,366.85
  5. Step 5: Solve for x
    x = 148,184,366.85/11,159.58
  6. Step 6: Final answer
    x = 13,278.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.