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Finding the Fourth Proportional to 9,296.70, 13,879.04 and 8,907.90

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Solution

The fourth proportional to 9,296.70, 13,879.04 and 8,907.90 is: 13,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,296.70 : 13,879.04 = 8,907.90 : x
  2. Step 2: Convert to fraction form
    9,296.70/13,879.04 = 8,907.90/x
  3. Step 3: Cross multiply
    9,296.70x = 13,879.04 × 8,907.90
  4. Step 4: Simplify right side
    9,296.70x = 123,633,055.88
  5. Step 5: Solve for x
    x = 123,633,055.88/9,296.70
  6. Step 6: Final answer
    x = 13,298.60

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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.