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Finding the Fourth Proportional to 9,353, 12,907.42 and 5,161.52

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Solution

The fourth proportional to 9,353, 12,907.42 and 5,161.52 is: 7,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353 : 12,907.42 = 5,161.52 : x
  2. Step 2: Convert to fraction form
    9,353/12,907.42 = 5,161.52/x
  3. Step 3: Cross multiply
    9,353x = 12,907.42 × 5,161.52
  4. Step 4: Simplify right side
    9,353x = 66,621,906.48
  5. Step 5: Solve for x
    x = 66,621,906.48/9,353
  6. Step 6: Final answer
    x = 7,123.05

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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.