Home / 14,289.28-21,419-5,974.08

Finding the Fourth Proportional to 14,289.28, 21,419 and 5,974.08

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Solution

The fourth proportional to 14,289.28, 21,419 and 5,974.08 is: 8,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.28 : 21,419 = 5,974.08 : x
  2. Step 2: Convert to fraction form
    14,289.28/21,419 = 5,974.08/x
  3. Step 3: Cross multiply
    14,289.28x = 21,419 × 5,974.08
  4. Step 4: Simplify right side
    14,289.28x = 127,958,819.52
  5. Step 5: Solve for x
    x = 127,958,819.52/14,289.28
  6. Step 6: Final answer
    x = 8,954.88

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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.