Home / 7,634.64-11,459.36-3,688.68

Finding the Fourth Proportional to 7,634.64, 11,459.36 and 3,688.68

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Solution

The fourth proportional to 7,634.64, 11,459.36 and 3,688.68 is: 5,536.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634.64 : 11,459.36 = 3,688.68 : x
  2. Step 2: Convert to fraction form
    7,634.64/11,459.36 = 3,688.68/x
  3. Step 3: Cross multiply
    7,634.64x = 11,459.36 × 3,688.68
  4. Step 4: Simplify right side
    7,634.64x = 42,269,912.04
  5. Step 5: Solve for x
    x = 42,269,912.04/7,634.64
  6. Step 6: Final answer
    x = 5,536.60

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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.