Home / 12,211.07-18,304.26-4,812.65

Finding the Fourth Proportional to 12,211.07, 18,304.26 and 4,812.65

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Solution

The fourth proportional to 12,211.07, 18,304.26 and 4,812.65 is: 7,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.07 : 18,304.26 = 4,812.65 : x
  2. Step 2: Convert to fraction form
    12,211.07/18,304.26 = 4,812.65/x
  3. Step 3: Cross multiply
    12,211.07x = 18,304.26 × 4,812.65
  4. Step 4: Simplify right side
    12,211.07x = 88,091,996.89
  5. Step 5: Solve for x
    x = 88,091,996.89/12,211.07
  6. Step 6: Final answer
    x = 7,214.11

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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.