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Finding the Fourth Proportional to 8,683.70, 13,025.55 and 7,274.30

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Solution

The fourth proportional to 8,683.70, 13,025.55 and 7,274.30 is: 10,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.70 : 13,025.55 = 7,274.30 : x
  2. Step 2: Convert to fraction form
    8,683.70/13,025.55 = 7,274.30/x
  3. Step 3: Cross multiply
    8,683.70x = 13,025.55 × 7,274.30
  4. Step 4: Simplify right side
    8,683.70x = 94,751,758.37
  5. Step 5: Solve for x
    x = 94,751,758.37/8,683.70
  6. Step 6: Final answer
    x = 10,911.45

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Similar ratio
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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.