Home / 8,076.78-11,146.14-4,539.90

Finding the Fourth Proportional to 8,076.78, 11,146.14 and 4,539.90

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Solution

The fourth proportional to 8,076.78, 11,146.14 and 4,539.90 is: 6,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.78 : 11,146.14 = 4,539.90 : x
  2. Step 2: Convert to fraction form
    8,076.78/11,146.14 = 4,539.90/x
  3. Step 3: Cross multiply
    8,076.78x = 11,146.14 × 4,539.90
  4. Step 4: Simplify right side
    8,076.78x = 50,602,360.99
  5. Step 5: Solve for x
    x = 50,602,360.99/8,076.78
  6. Step 6: Final answer
    x = 6,265.17

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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.