Home / 14,918.60-22,392.30-12,729.80

Finding the Fourth Proportional to 14,918.60, 22,392.30 and 12,729.80

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Solution

The fourth proportional to 14,918.60, 22,392.30 and 12,729.80 is: 19,106.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.60 : 22,392.30 = 12,729.80 : x
  2. Step 2: Convert to fraction form
    14,918.60/22,392.30 = 12,729.80/x
  3. Step 3: Cross multiply
    14,918.60x = 22,392.30 × 12,729.80
  4. Step 4: Simplify right side
    14,918.60x = 285,049,500.54
  5. Step 5: Solve for x
    x = 285,049,500.54/14,918.60
  6. Step 6: Final answer
    x = 19,106.99

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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.