Home / 9,621.90-14,420.70-5,235.75

Finding the Fourth Proportional to 9,621.90, 14,420.70 and 5,235.75

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Solution

The fourth proportional to 9,621.90, 14,420.70 and 5,235.75 is: 7,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.90 : 14,420.70 = 5,235.75 : x
  2. Step 2: Convert to fraction form
    9,621.90/14,420.70 = 5,235.75/x
  3. Step 3: Cross multiply
    9,621.90x = 14,420.70 × 5,235.75
  4. Step 4: Simplify right side
    9,621.90x = 75,503,180.03
  5. Step 5: Solve for x
    x = 75,503,180.03/9,621.90
  6. Step 6: Final answer
    x = 7,847.01

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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.