Home / 9,738.90-14,596.20-7,138.80

Finding the Fourth Proportional to 9,738.90, 14,596.20 and 7,138.80

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Solution

The fourth proportional to 9,738.90, 14,596.20 and 7,138.80 is: 10,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,738.90 : 14,596.20 = 7,138.80 : x
  2. Step 2: Convert to fraction form
    9,738.90/14,596.20 = 7,138.80/x
  3. Step 3: Cross multiply
    9,738.90x = 14,596.20 × 7,138.80
  4. Step 4: Simplify right side
    9,738.90x = 104,199,352.56
  5. Step 5: Solve for x
    x = 104,199,352.56/9,738.90
  6. Step 6: Final answer
    x = 10,699.29

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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.