Home / 11,790.09-16,270.34-6,485.31

Finding the Fourth Proportional to 11,790.09, 16,270.34 and 6,485.31

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Solution

The fourth proportional to 11,790.09, 16,270.34 and 6,485.31 is: 8,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.09 : 16,270.34 = 6,485.31 : x
  2. Step 2: Convert to fraction form
    11,790.09/16,270.34 = 6,485.31/x
  3. Step 3: Cross multiply
    11,790.09x = 16,270.34 × 6,485.31
  4. Step 4: Simplify right side
    11,790.09x = 105,518,166.28
  5. Step 5: Solve for x
    x = 105,518,166.28/11,790.09
  6. Step 6: Final answer
    x = 8,949.73

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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.