Home / 7,776.72-11,655.33-6,126.75

Finding the Fourth Proportional to 7,776.72, 11,655.33 and 6,126.75

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Solution

The fourth proportional to 7,776.72, 11,655.33 and 6,126.75 is: 9,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.72 : 11,655.33 = 6,126.75 : x
  2. Step 2: Convert to fraction form
    7,776.72/11,655.33 = 6,126.75/x
  3. Step 3: Cross multiply
    7,776.72x = 11,655.33 × 6,126.75
  4. Step 4: Simplify right side
    7,776.72x = 71,409,293.08
  5. Step 5: Solve for x
    x = 71,409,293.08/7,776.72
  6. Step 6: Final answer
    x = 9,182.44

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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.