Home / 8,520.40-11,758.89-4,744.90

Finding the Fourth Proportional to 8,520.40, 11,758.89 and 4,744.90

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Solution

The fourth proportional to 8,520.40, 11,758.89 and 4,744.90 is: 6,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.40 : 11,758.89 = 4,744.90 : x
  2. Step 2: Convert to fraction form
    8,520.40/11,758.89 = 4,744.90/x
  3. Step 3: Cross multiply
    8,520.40x = 11,758.89 × 4,744.90
  4. Step 4: Simplify right side
    8,520.40x = 55,794,757.16
  5. Step 5: Solve for x
    x = 55,794,757.16/8,520.40
  6. Step 6: Final answer
    x = 6,548.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.