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Finding the Fourth Proportional to 8,345.00, 11,454.74 and 7,379.63

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Solution

The fourth proportional to 8,345.00, 11,454.74 and 7,379.63 is: 10,129.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.00 : 11,454.74 = 7,379.63 : x
  2. Step 2: Convert to fraction form
    8,345.00/11,454.74 = 7,379.63/x
  3. Step 3: Cross multiply
    8,345.00x = 11,454.74 × 7,379.63
  4. Step 4: Simplify right side
    8,345.00x = 84,531,734.68
  5. Step 5: Solve for x
    x = 84,531,734.68/8,345.00
  6. Step 6: Final answer
    x = 10,129.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.