Home / 14,721.10-20,313.56-8,751.98

Finding the Fourth Proportional to 14,721.10, 20,313.56 and 8,751.98

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Solution

The fourth proportional to 14,721.10, 20,313.56 and 8,751.98 is: 12,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.10 : 20,313.56 = 8,751.98 : x
  2. Step 2: Convert to fraction form
    14,721.10/20,313.56 = 8,751.98/x
  3. Step 3: Cross multiply
    14,721.10x = 20,313.56 × 8,751.98
  4. Step 4: Simplify right side
    14,721.10x = 177,783,870.85
  5. Step 5: Solve for x
    x = 177,783,870.85/14,721.10
  6. Step 6: Final answer
    x = 12,076.81

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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.