Home / 12,013.88-18,020.52-5,435.26

Finding the Fourth Proportional to 12,013.88, 18,020.52 and 5,435.26

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Solution

The fourth proportional to 12,013.88, 18,020.52 and 5,435.26 is: 8,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.88 : 18,020.52 = 5,435.26 : x
  2. Step 2: Convert to fraction form
    12,013.88/18,020.52 = 5,435.26/x
  3. Step 3: Cross multiply
    12,013.88x = 18,020.52 × 5,435.26
  4. Step 4: Simplify right side
    12,013.88x = 97,946,211.54
  5. Step 5: Solve for x
    x = 97,946,211.54/12,013.88
  6. Step 6: Final answer
    x = 8,152.75

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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.