Home / 7,742.41-10,679.64-6,174.25

Finding the Fourth Proportional to 7,742.41, 10,679.64 and 6,174.25

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Solution

The fourth proportional to 7,742.41, 10,679.64 and 6,174.25 is: 8,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.41 : 10,679.64 = 6,174.25 : x
  2. Step 2: Convert to fraction form
    7,742.41/10,679.64 = 6,174.25/x
  3. Step 3: Cross multiply
    7,742.41x = 10,679.64 × 6,174.25
  4. Step 4: Simplify right side
    7,742.41x = 65,938,767.27
  5. Step 5: Solve for x
    x = 65,938,767.27/7,742.41
  6. Step 6: Final answer
    x = 8,516.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.