Home / 26,188.12-39,285.86-8,412.81

Finding the Fourth Proportional to 26,188.12, 39,285.86 and 8,412.81

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Solution

The fourth proportional to 26,188.12, 39,285.86 and 8,412.81 is: 12,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,188.12 : 39,285.86 = 8,412.81 : x
  2. Step 2: Convert to fraction form
    26,188.12/39,285.86 = 8,412.81/x
  3. Step 3: Cross multiply
    26,188.12x = 39,285.86 × 8,412.81
  4. Step 4: Simplify right side
    26,188.12x = 330,504,688.94
  5. Step 5: Solve for x
    x = 330,504,688.94/26,188.12
  6. Step 6: Final answer
    x = 12,620.41

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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.