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Finding the Fourth Proportional to 8,325.58, 12,427.64 and 7,274.62

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Solution

The fourth proportional to 8,325.58, 12,427.64 and 7,274.62 is: 10,858.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.58 : 12,427.64 = 7,274.62 : x
  2. Step 2: Convert to fraction form
    8,325.58/12,427.64 = 7,274.62/x
  3. Step 3: Cross multiply
    8,325.58x = 12,427.64 × 7,274.62
  4. Step 4: Simplify right side
    8,325.58x = 90,406,353.19
  5. Step 5: Solve for x
    x = 90,406,353.19/8,325.58
  6. Step 6: Final answer
    x = 10,858.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.