Home / 8,068.78-12,101.81-2,145.76

Finding the Fourth Proportional to 8,068.78, 12,101.81 and 2,145.76

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Solution

The fourth proportional to 8,068.78, 12,101.81 and 2,145.76 is: 3,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.78 : 12,101.81 = 2,145.76 : x
  2. Step 2: Convert to fraction form
    8,068.78/12,101.81 = 2,145.76/x
  3. Step 3: Cross multiply
    8,068.78x = 12,101.81 × 2,145.76
  4. Step 4: Simplify right side
    8,068.78x = 25,967,538.84
  5. Step 5: Solve for x
    x = 25,967,538.84/8,068.78
  6. Step 6: Final answer
    x = 3,218.27

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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.