Home / 10,305.45-14,231.58-8,804.61

Finding the Fourth Proportional to 10,305.45, 14,231.58 and 8,804.61

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Solution

The fourth proportional to 10,305.45, 14,231.58 and 8,804.61 is: 12,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.45 : 14,231.58 = 8,804.61 : x
  2. Step 2: Convert to fraction form
    10,305.45/14,231.58 = 8,804.61/x
  3. Step 3: Cross multiply
    10,305.45x = 14,231.58 × 8,804.61
  4. Step 4: Simplify right side
    10,305.45x = 125,303,511.58
  5. Step 5: Solve for x
    x = 125,303,511.58/10,305.45
  6. Step 6: Final answer
    x = 12,158.96

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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.