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Finding the Fourth Proportional to 9,368.76, 12,927.60 and 5,388.44

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Solution

The fourth proportional to 9,368.76, 12,927.60 and 5,388.44 is: 7,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.76 : 12,927.60 = 5,388.44 : x
  2. Step 2: Convert to fraction form
    9,368.76/12,927.60 = 5,388.44/x
  3. Step 3: Cross multiply
    9,368.76x = 12,927.60 × 5,388.44
  4. Step 4: Simplify right side
    9,368.76x = 69,659,596.94
  5. Step 5: Solve for x
    x = 69,659,596.94/9,368.76
  6. Step 6: Final answer
    x = 7,435.31

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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.