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Finding the Fourth Proportional to 9,287.08, 13,930.62 and 7,835.56

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Solution

The fourth proportional to 9,287.08, 13,930.62 and 7,835.56 is: 11,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.08 : 13,930.62 = 7,835.56 : x
  2. Step 2: Convert to fraction form
    9,287.08/13,930.62 = 7,835.56/x
  3. Step 3: Cross multiply
    9,287.08x = 13,930.62 × 7,835.56
  4. Step 4: Simplify right side
    9,287.08x = 109,154,208.85
  5. Step 5: Solve for x
    x = 109,154,208.85/9,287.08
  6. Step 6: Final answer
    x = 11,753.34

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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.