Home / 11,685.34-16,125.66-6,380.14

Finding the Fourth Proportional to 11,685.34, 16,125.66 and 6,380.14

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Solution

The fourth proportional to 11,685.34, 16,125.66 and 6,380.14 is: 8,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.34 : 16,125.66 = 6,380.14 : x
  2. Step 2: Convert to fraction form
    11,685.34/16,125.66 = 6,380.14/x
  3. Step 3: Cross multiply
    11,685.34x = 16,125.66 × 6,380.14
  4. Step 4: Simplify right side
    11,685.34x = 102,883,985.72
  5. Step 5: Solve for x
    x = 102,883,985.72/11,685.34
  6. Step 6: Final answer
    x = 8,804.54

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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.