Home / 7,620.12-11,430.38-3,670.76

Finding the Fourth Proportional to 7,620.12, 11,430.38 and 3,670.76

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Solution

The fourth proportional to 7,620.12, 11,430.38 and 3,670.76 is: 5,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.12 : 11,430.38 = 3,670.76 : x
  2. Step 2: Convert to fraction form
    7,620.12/11,430.38 = 3,670.76/x
  3. Step 3: Cross multiply
    7,620.12x = 11,430.38 × 3,670.76
  4. Step 4: Simplify right side
    7,620.12x = 41,958,219.44
  5. Step 5: Solve for x
    x = 41,958,219.44/7,620.12
  6. Step 6: Final answer
    x = 5,506.24

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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.