Home / 12,015.98-18,013.74-7,339.27

Finding the Fourth Proportional to 12,015.98, 18,013.74 and 7,339.27

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Solution

The fourth proportional to 12,015.98, 18,013.74 and 7,339.27 is: 11,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.98 : 18,013.74 = 7,339.27 : x
  2. Step 2: Convert to fraction form
    12,015.98/18,013.74 = 7,339.27/x
  3. Step 3: Cross multiply
    12,015.98x = 18,013.74 × 7,339.27
  4. Step 4: Simplify right side
    12,015.98x = 132,207,701.57
  5. Step 5: Solve for x
    x = 132,207,701.57/12,015.98
  6. Step 6: Final answer
    x = 11,002.66

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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.