Home / 14,640.27-20,204.21-9,260.78

Finding the Fourth Proportional to 14,640.27, 20,204.21 and 9,260.78

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Solution

The fourth proportional to 14,640.27, 20,204.21 and 9,260.78 is: 12,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.27 : 20,204.21 = 9,260.78 : x
  2. Step 2: Convert to fraction form
    14,640.27/20,204.21 = 9,260.78/x
  3. Step 3: Cross multiply
    14,640.27x = 20,204.21 × 9,260.78
  4. Step 4: Simplify right side
    14,640.27x = 187,106,743.88
  5. Step 5: Solve for x
    x = 187,106,743.88/14,640.27
  6. Step 6: Final answer
    x = 12,780.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.