Home / 11,942.40-16,475.78-6,905.70

Finding the Fourth Proportional to 11,942.40, 16,475.78 and 6,905.70

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Solution

The fourth proportional to 11,942.40, 16,475.78 and 6,905.70 is: 9,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.40 : 16,475.78 = 6,905.70 : x
  2. Step 2: Convert to fraction form
    11,942.40/16,475.78 = 6,905.70/x
  3. Step 3: Cross multiply
    11,942.40x = 16,475.78 × 6,905.70
  4. Step 4: Simplify right side
    11,942.40x = 113,776,793.95
  5. Step 5: Solve for x
    x = 113,776,793.95/11,942.40
  6. Step 6: Final answer
    x = 9,527.13

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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.