Home / 14,251.28-21,378.94-4,391.36

Finding the Fourth Proportional to 14,251.28, 21,378.94 and 4,391.36

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Solution

The fourth proportional to 14,251.28, 21,378.94 and 4,391.36 is: 6,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.28 : 21,378.94 = 4,391.36 : x
  2. Step 2: Convert to fraction form
    14,251.28/21,378.94 = 4,391.36/x
  3. Step 3: Cross multiply
    14,251.28x = 21,378.94 × 4,391.36
  4. Step 4: Simplify right side
    14,251.28x = 93,882,621.96
  5. Step 5: Solve for x
    x = 93,882,621.96/14,251.28
  6. Step 6: Final answer
    x = 6,587.66

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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.