Home / 13,727.33-20,618.55-8,191.48

Finding the Fourth Proportional to 13,727.33, 20,618.55 and 8,191.48

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Solution

The fourth proportional to 13,727.33, 20,618.55 and 8,191.48 is: 12,303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.33 : 20,618.55 = 8,191.48 : x
  2. Step 2: Convert to fraction form
    13,727.33/20,618.55 = 8,191.48/x
  3. Step 3: Cross multiply
    13,727.33x = 20,618.55 × 8,191.48
  4. Step 4: Simplify right side
    13,727.33x = 168,896,439.95
  5. Step 5: Solve for x
    x = 168,896,439.95/13,727.33
  6. Step 6: Final answer
    x = 12,303.66

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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.