Home / 14,306.80-21,460.20-12,192.70

Finding the Fourth Proportional to 14,306.80, 21,460.20 and 12,192.70

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Solution

The fourth proportional to 14,306.80, 21,460.20 and 12,192.70 is: 18,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,306.80 : 21,460.20 = 12,192.70 : x
  2. Step 2: Convert to fraction form
    14,306.80/21,460.20 = 12,192.70/x
  3. Step 3: Cross multiply
    14,306.80x = 21,460.20 × 12,192.70
  4. Step 4: Simplify right side
    14,306.80x = 261,657,780.54
  5. Step 5: Solve for x
    x = 261,657,780.54/14,306.80
  6. Step 6: Final answer
    x = 18,289.05

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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.