Home / 7,977.75-11,010.69-6,086.40

Finding the Fourth Proportional to 7,977.75, 11,010.69 and 6,086.40

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Solution

The fourth proportional to 7,977.75, 11,010.69 and 6,086.40 is: 8,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.75 : 11,010.69 = 6,086.40 : x
  2. Step 2: Convert to fraction form
    7,977.75/11,010.69 = 6,086.40/x
  3. Step 3: Cross multiply
    7,977.75x = 11,010.69 × 6,086.40
  4. Step 4: Simplify right side
    7,977.75x = 67,015,463.62
  5. Step 5: Solve for x
    x = 67,015,463.62/7,977.75
  6. Step 6: Final answer
    x = 8,400.30

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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.