Home / 11,655.18-16,084.31-6,942.15

Finding the Fourth Proportional to 11,655.18, 16,084.31 and 6,942.15

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Solution

The fourth proportional to 11,655.18, 16,084.31 and 6,942.15 is: 9,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.18 : 16,084.31 = 6,942.15 : x
  2. Step 2: Convert to fraction form
    11,655.18/16,084.31 = 6,942.15/x
  3. Step 3: Cross multiply
    11,655.18x = 16,084.31 × 6,942.15
  4. Step 4: Simplify right side
    11,655.18x = 111,659,657.96
  5. Step 5: Solve for x
    x = 111,659,657.96/11,655.18
  6. Step 6: Final answer
    x = 9,580.26

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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.