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Finding the Fourth Proportional to 9,503, 13,114.42 and 5,311.26

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Solution

The fourth proportional to 9,503, 13,114.42 and 5,311.26 is: 7,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503 : 13,114.42 = 5,311.26 : x
  2. Step 2: Convert to fraction form
    9,503/13,114.42 = 5,311.26/x
  3. Step 3: Cross multiply
    9,503x = 13,114.42 × 5,311.26
  4. Step 4: Simplify right side
    9,503x = 69,654,094.37
  5. Step 5: Solve for x
    x = 69,654,094.37/9,503
  6. Step 6: Final answer
    x = 7,329.70

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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.