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Finding the Fourth Proportional to 12,054.96, 16,628.04 and 7,861.68

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Solution

The fourth proportional to 12,054.96, 16,628.04 and 7,861.68 is: 10,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,054.96 : 16,628.04 = 7,861.68 : x
  2. Step 2: Convert to fraction form
    12,054.96/16,628.04 = 7,861.68/x
  3. Step 3: Cross multiply
    12,054.96x = 16,628.04 × 7,861.68
  4. Step 4: Simplify right side
    12,054.96x = 130,724,329.51
  5. Step 5: Solve for x
    x = 130,724,329.51/12,054.96
  6. Step 6: Final answer
    x = 10,844.03

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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.