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Finding the Fourth Proportional to 9,030.70, 13,546.05 and 8,374.60

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Solution

The fourth proportional to 9,030.70, 13,546.05 and 8,374.60 is: 12,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,030.70 : 13,546.05 = 8,374.60 : x
  2. Step 2: Convert to fraction form
    9,030.70/13,546.05 = 8,374.60/x
  3. Step 3: Cross multiply
    9,030.70x = 13,546.05 × 8,374.60
  4. Step 4: Simplify right side
    9,030.70x = 113,442,750.33
  5. Step 5: Solve for x
    x = 113,442,750.33/9,030.70
  6. Step 6: Final answer
    x = 12,561.90

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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.