Home / 7,749.81-11,615.94-6,369.30

Finding the Fourth Proportional to 7,749.81, 11,615.94 and 6,369.30

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Solution

The fourth proportional to 7,749.81, 11,615.94 and 6,369.30 is: 9,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.81 : 11,615.94 = 6,369.30 : x
  2. Step 2: Convert to fraction form
    7,749.81/11,615.94 = 6,369.30/x
  3. Step 3: Cross multiply
    7,749.81x = 11,615.94 × 6,369.30
  4. Step 4: Simplify right side
    7,749.81x = 73,985,406.64
  5. Step 5: Solve for x
    x = 73,985,406.64/7,749.81
  6. Step 6: Final answer
    x = 9,546.74

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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.