Home / 12,640.63-18,946.81-4,735.54

Finding the Fourth Proportional to 12,640.63, 18,946.81 and 4,735.54

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Solution

The fourth proportional to 12,640.63, 18,946.81 and 4,735.54 is: 7,098.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.63 : 18,946.81 = 4,735.54 : x
  2. Step 2: Convert to fraction form
    12,640.63/18,946.81 = 4,735.54/x
  3. Step 3: Cross multiply
    12,640.63x = 18,946.81 × 4,735.54
  4. Step 4: Simplify right side
    12,640.63x = 89,723,376.63
  5. Step 5: Solve for x
    x = 89,723,376.63/12,640.63
  6. Step 6: Final answer
    x = 7,098.01

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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.