Home / 7,930.40-11,895.60-6,677.60

Finding the Fourth Proportional to 7,930.40, 11,895.60 and 6,677.60

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Solution

The fourth proportional to 7,930.40, 11,895.60 and 6,677.60 is: 10,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.40 : 11,895.60 = 6,677.60 : x
  2. Step 2: Convert to fraction form
    7,930.40/11,895.60 = 6,677.60/x
  3. Step 3: Cross multiply
    7,930.40x = 11,895.60 × 6,677.60
  4. Step 4: Simplify right side
    7,930.40x = 79,434,058.56
  5. Step 5: Solve for x
    x = 79,434,058.56/7,930.40
  6. Step 6: Final answer
    x = 10,016.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.