Home / 12,640.12-18,946.06-4,735.04

Finding the Fourth Proportional to 12,640.12, 18,946.06 and 4,735.04

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Solution

The fourth proportional to 12,640.12, 18,946.06 and 4,735.04 is: 7,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.12 : 18,946.06 = 4,735.04 : x
  2. Step 2: Convert to fraction form
    12,640.12/18,946.06 = 4,735.04/x
  3. Step 3: Cross multiply
    12,640.12x = 18,946.06 × 4,735.04
  4. Step 4: Simplify right side
    12,640.12x = 89,710,351.94
  5. Step 5: Solve for x
    x = 89,710,351.94/12,640.12
  6. Step 6: Final answer
    x = 7,097.27

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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.