Home / 14,076.08-21,107.28-5,311.68

Finding the Fourth Proportional to 14,076.08, 21,107.28 and 5,311.68

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Solution

The fourth proportional to 14,076.08, 21,107.28 and 5,311.68 is: 7,964.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.08 : 21,107.28 = 5,311.68 : x
  2. Step 2: Convert to fraction form
    14,076.08/21,107.28 = 5,311.68/x
  3. Step 3: Cross multiply
    14,076.08x = 21,107.28 × 5,311.68
  4. Step 4: Simplify right side
    14,076.08x = 112,115,057.80
  5. Step 5: Solve for x
    x = 112,115,057.80/14,076.08
  6. Step 6: Final answer
    x = 7,964.94

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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.