Home / 7,770.38-11,655.66-6,220.24

Finding the Fourth Proportional to 7,770.38, 11,655.66 and 6,220.24

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Solution

The fourth proportional to 7,770.38, 11,655.66 and 6,220.24 is: 9,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.38 : 11,655.66 = 6,220.24 : x
  2. Step 2: Convert to fraction form
    7,770.38/11,655.66 = 6,220.24/x
  3. Step 3: Cross multiply
    7,770.38x = 11,655.66 × 6,220.24
  4. Step 4: Simplify right side
    7,770.38x = 72,500,975.34
  5. Step 5: Solve for x
    x = 72,500,975.34/7,770.38
  6. Step 6: Final answer
    x = 9,330.43

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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.