Home / 7,986.72-11,949.84-4,526.40

Finding the Fourth Proportional to 7,986.72, 11,949.84 and 4,526.40

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Solution

The fourth proportional to 7,986.72, 11,949.84 and 4,526.40 is: 6,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.72 : 11,949.84 = 4,526.40 : x
  2. Step 2: Convert to fraction form
    7,986.72/11,949.84 = 4,526.40/x
  3. Step 3: Cross multiply
    7,986.72x = 11,949.84 × 4,526.40
  4. Step 4: Simplify right side
    7,986.72x = 54,089,755.78
  5. Step 5: Solve for x
    x = 54,089,755.78/7,986.72
  6. Step 6: Final answer
    x = 6,772.46

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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.