Home / 7,638.60-11,429.19-4,520.07

Finding the Fourth Proportional to 7,638.60, 11,429.19 and 4,520.07

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Solution

The fourth proportional to 7,638.60, 11,429.19 and 4,520.07 is: 6,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.60 : 11,429.19 = 4,520.07 : x
  2. Step 2: Convert to fraction form
    7,638.60/11,429.19 = 4,520.07/x
  3. Step 3: Cross multiply
    7,638.60x = 11,429.19 × 4,520.07
  4. Step 4: Simplify right side
    7,638.60x = 51,660,738.84
  5. Step 5: Solve for x
    x = 51,660,738.84/7,638.60
  6. Step 6: Final answer
    x = 6,763.12

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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.