Home / 7,776.27-11,654.64-3,328.70

Finding the Fourth Proportional to 7,776.27, 11,654.64 and 3,328.70

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Solution

The fourth proportional to 7,776.27, 11,654.64 and 3,328.70 is: 4,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.27 : 11,654.64 = 3,328.70 : x
  2. Step 2: Convert to fraction form
    7,776.27/11,654.64 = 3,328.70/x
  3. Step 3: Cross multiply
    7,776.27x = 11,654.64 × 3,328.70
  4. Step 4: Simplify right side
    7,776.27x = 38,794,741.89
  5. Step 5: Solve for x
    x = 38,794,741.89/7,776.27
  6. Step 6: Final answer
    x = 4,988.86

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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.