Home / 12,639.36-18,942.72-6,051.84

Finding the Fourth Proportional to 12,639.36, 18,942.72 and 6,051.84

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Solution

The fourth proportional to 12,639.36, 18,942.72 and 6,051.84 is: 9,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.36 : 18,942.72 = 6,051.84 : x
  2. Step 2: Convert to fraction form
    12,639.36/18,942.72 = 6,051.84/x
  3. Step 3: Cross multiply
    12,639.36x = 18,942.72 × 6,051.84
  4. Step 4: Simplify right side
    12,639.36x = 114,638,310.60
  5. Step 5: Solve for x
    x = 114,638,310.60/12,639.36
  6. Step 6: Final answer
    x = 9,069.95

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1.5x scale

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.