Home / 11,685.02-16,125.57-6,379.86

Finding the Fourth Proportional to 11,685.02, 16,125.57 and 6,379.86

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Solution

The fourth proportional to 11,685.02, 16,125.57 and 6,379.86 is: 8,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.02 : 16,125.57 = 6,379.86 : x
  2. Step 2: Convert to fraction form
    11,685.02/16,125.57 = 6,379.86/x
  3. Step 3: Cross multiply
    11,685.02x = 16,125.57 × 6,379.86
  4. Step 4: Simplify right side
    11,685.02x = 102,878,847.12
  5. Step 5: Solve for x
    x = 102,878,847.12/11,685.02
  6. Step 6: Final answer
    x = 8,804.34

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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.