Home / 13,698.92-20,586.76-8,153.12

Finding the Fourth Proportional to 13,698.92, 20,586.76 and 8,153.12

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Solution

The fourth proportional to 13,698.92, 20,586.76 and 8,153.12 is: 12,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.92 : 20,586.76 = 8,153.12 : x
  2. Step 2: Convert to fraction form
    13,698.92/20,586.76 = 8,153.12/x
  3. Step 3: Cross multiply
    13,698.92x = 20,586.76 × 8,153.12
  4. Step 4: Simplify right side
    13,698.92x = 167,846,355.78
  5. Step 5: Solve for x
    x = 167,846,355.78/13,698.92
  6. Step 6: Final answer
    x = 12,252.52

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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.