Home / 9,161.98-13,721.58-6,690.67

Finding the Fourth Proportional to 9,161.98, 13,721.58 and 6,690.67

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Solution

The fourth proportional to 9,161.98, 13,721.58 and 6,690.67 is: 10,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.98 : 13,721.58 = 6,690.67 : x
  2. Step 2: Convert to fraction form
    9,161.98/13,721.58 = 6,690.67/x
  3. Step 3: Cross multiply
    9,161.98x = 13,721.58 × 6,690.67
  4. Step 4: Simplify right side
    9,161.98x = 91,806,563.66
  5. Step 5: Solve for x
    x = 91,806,563.66/9,161.98
  6. Step 6: Final answer
    x = 10,020.38

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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.