Home / 14,311.56-21,424.62-12,809.88

Finding the Fourth Proportional to 14,311.56, 21,424.62 and 12,809.88

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Solution

The fourth proportional to 14,311.56, 21,424.62 and 12,809.88 is: 19,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.56 : 21,424.62 = 12,809.88 : x
  2. Step 2: Convert to fraction form
    14,311.56/21,424.62 = 12,809.88/x
  3. Step 3: Cross multiply
    14,311.56x = 21,424.62 × 12,809.88
  4. Step 4: Simplify right side
    14,311.56x = 274,446,811.25
  5. Step 5: Solve for x
    x = 274,446,811.25/14,311.56
  6. Step 6: Final answer
    x = 19,176.58

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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.