Home / 9,431.90-14,138.40-4,744.70

Finding the Fourth Proportional to 9,431.90, 14,138.40 and 4,744.70

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Solution

The fourth proportional to 9,431.90, 14,138.40 and 4,744.70 is: 7,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.90 : 14,138.40 = 4,744.70 : x
  2. Step 2: Convert to fraction form
    9,431.90/14,138.40 = 4,744.70/x
  3. Step 3: Cross multiply
    9,431.90x = 14,138.40 × 4,744.70
  4. Step 4: Simplify right side
    9,431.90x = 67,082,466.48
  5. Step 5: Solve for x
    x = 67,082,466.48/9,431.90
  6. Step 6: Final answer
    x = 7,112.30

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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.