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Finding the Fourth Proportional to 8,409.93, 12,598.29 and 4,891.09

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Solution

The fourth proportional to 8,409.93, 12,598.29 and 4,891.09 is: 7,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.93 : 12,598.29 = 4,891.09 : x
  2. Step 2: Convert to fraction form
    8,409.93/12,598.29 = 4,891.09/x
  3. Step 3: Cross multiply
    8,409.93x = 12,598.29 × 4,891.09
  4. Step 4: Simplify right side
    8,409.93x = 61,619,338.74
  5. Step 5: Solve for x
    x = 61,619,338.74/8,409.93
  6. Step 6: Final answer
    x = 7,326.97

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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.