Home / 12,128.37-18,184.68-4,733.57

Finding the Fourth Proportional to 12,128.37, 18,184.68 and 4,733.57

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Solution

The fourth proportional to 12,128.37, 18,184.68 and 4,733.57 is: 7,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.37 : 18,184.68 = 4,733.57 : x
  2. Step 2: Convert to fraction form
    12,128.37/18,184.68 = 4,733.57/x
  3. Step 3: Cross multiply
    12,128.37x = 18,184.68 × 4,733.57
  4. Step 4: Simplify right side
    12,128.37x = 86,078,364.78
  5. Step 5: Solve for x
    x = 86,078,364.78/12,128.37
  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.