Home / 9,168.44-12,639.15-6,774.89

Finding the Fourth Proportional to 9,168.44, 12,639.15 and 6,774.89

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Solution

The fourth proportional to 9,168.44, 12,639.15 and 6,774.89 is: 9,339.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.44 : 12,639.15 = 6,774.89 : x
  2. Step 2: Convert to fraction form
    9,168.44/12,639.15 = 6,774.89/x
  3. Step 3: Cross multiply
    9,168.44x = 12,639.15 × 6,774.89
  4. Step 4: Simplify right side
    9,168.44x = 85,628,787.75
  5. Step 5: Solve for x
    x = 85,628,787.75/9,168.44
  6. Step 6: Final answer
    x = 9,339.52

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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.