Home / 14,364.20-21,546.30-12,981.80

Finding the Fourth Proportional to 14,364.20, 21,546.30 and 12,981.80

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Solution

The fourth proportional to 14,364.20, 21,546.30 and 12,981.80 is: 19,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,364.20 : 21,546.30 = 12,981.80 : x
  2. Step 2: Convert to fraction form
    14,364.20/21,546.30 = 12,981.80/x
  3. Step 3: Cross multiply
    14,364.20x = 21,546.30 × 12,981.80
  4. Step 4: Simplify right side
    14,364.20x = 279,709,757.34
  5. Step 5: Solve for x
    x = 279,709,757.34/14,364.20
  6. Step 6: Final answer
    x = 19,472.70

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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.