Home / 13,513.91-20,270.83-11,200.55

Finding the Fourth Proportional to 13,513.91, 20,270.83 and 11,200.55

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Solution

The fourth proportional to 13,513.91, 20,270.83 and 11,200.55 is: 16,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.91 : 20,270.83 = 11,200.55 : x
  2. Step 2: Convert to fraction form
    13,513.91/20,270.83 = 11,200.55/x
  3. Step 3: Cross multiply
    13,513.91x = 20,270.83 × 11,200.55
  4. Step 4: Simplify right side
    13,513.91x = 227,044,444.96
  5. Step 5: Solve for x
    x = 227,044,444.96/13,513.91
  6. Step 6: Final answer
    x = 16,800.80

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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.