Home / 7,944.80-10,938.90-6,747.30

Finding the Fourth Proportional to 7,944.80, 10,938.90 and 6,747.30

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Solution

The fourth proportional to 7,944.80, 10,938.90 and 6,747.30 is: 9,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.80 : 10,938.90 = 6,747.30 : x
  2. Step 2: Convert to fraction form
    7,944.80/10,938.90 = 6,747.30/x
  3. Step 3: Cross multiply
    7,944.80x = 10,938.90 × 6,747.30
  4. Step 4: Simplify right side
    7,944.80x = 73,808,039.97
  5. Step 5: Solve for x
    x = 73,808,039.97/7,944.80
  6. Step 6: Final answer
    x = 9,290.11

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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.