Home / 14,148.85-21,226.92-5,378.98

Finding the Fourth Proportional to 14,148.85, 21,226.92 and 5,378.98

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Solution

The fourth proportional to 14,148.85, 21,226.92 and 5,378.98 is: 8,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.85 : 21,226.92 = 5,378.98 : x
  2. Step 2: Convert to fraction form
    14,148.85/21,226.92 = 5,378.98/x
  3. Step 3: Cross multiply
    14,148.85x = 21,226.92 × 5,378.98
  4. Step 4: Simplify right side
    14,148.85x = 114,179,178.14
  5. Step 5: Solve for x
    x = 114,179,178.14/14,148.85
  6. Step 6: Final answer
    x = 8,069.86

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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.