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Finding the Fourth Proportional to 8,403.30, 11,515.09 and 8,097.30

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Solution

The fourth proportional to 8,403.30, 11,515.09 and 8,097.30 is: 11,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.30 : 11,515.09 = 8,097.30 : x
  2. Step 2: Convert to fraction form
    8,403.30/11,515.09 = 8,097.30/x
  3. Step 3: Cross multiply
    8,403.30x = 11,515.09 × 8,097.30
  4. Step 4: Simplify right side
    8,403.30x = 93,241,097.77
  5. Step 5: Solve for x
    x = 93,241,097.77/8,403.30
  6. Step 6: Final answer
    x = 11,095.77

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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.