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Finding the Fourth Proportional to 12,000.51, 18,000.74 and 3,235.41

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Solution

The fourth proportional to 12,000.51, 18,000.74 and 3,235.41 is: 4,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.51 : 18,000.74 = 3,235.41 : x
  2. Step 2: Convert to fraction form
    12,000.51/18,000.74 = 3,235.41/x
  3. Step 3: Cross multiply
    12,000.51x = 18,000.74 × 3,235.41
  4. Step 4: Simplify right side
    12,000.51x = 58,239,758.03
  5. Step 5: Solve for x
    x = 58,239,758.03/12,000.51
  6. Step 6: Final answer
    x = 4,853.11

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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.