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Finding the Fourth Proportional to 9,269.00, 12,749.74 and 8,129.06

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Solution

The fourth proportional to 9,269.00, 12,749.74 and 8,129.06 is: 11,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,269.00 : 12,749.74 = 8,129.06 : x
  2. Step 2: Convert to fraction form
    9,269.00/12,749.74 = 8,129.06/x
  3. Step 3: Cross multiply
    9,269.00x = 12,749.74 × 8,129.06
  4. Step 4: Simplify right side
    9,269.00x = 103,643,317.37
  5. Step 5: Solve for x
    x = 103,643,317.37/9,269.00
  6. Step 6: Final answer
    x = 11,181.72

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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.