Home / 7,620.35-11,430.21-2,355.14

Finding the Fourth Proportional to 7,620.35, 11,430.21 and 2,355.14

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Solution

The fourth proportional to 7,620.35, 11,430.21 and 2,355.14 is: 3,532.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.35 : 11,430.21 = 2,355.14 : x
  2. Step 2: Convert to fraction form
    7,620.35/11,430.21 = 2,355.14/x
  3. Step 3: Cross multiply
    7,620.35x = 11,430.21 × 2,355.14
  4. Step 4: Simplify right side
    7,620.35x = 26,919,687.63
  5. Step 5: Solve for x
    x = 26,919,687.63/7,620.35
  6. Step 6: Final answer
    x = 3,532.61

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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.