Home / 13,486.81-20,200.74-11,120.23

Finding the Fourth Proportional to 13,486.81, 20,200.74 and 11,120.23

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Solution

The fourth proportional to 13,486.81, 20,200.74 and 11,120.23 is: 16,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.81 : 20,200.74 = 11,120.23 : x
  2. Step 2: Convert to fraction form
    13,486.81/20,200.74 = 11,120.23/x
  3. Step 3: Cross multiply
    13,486.81x = 20,200.74 × 11,120.23
  4. Step 4: Simplify right side
    13,486.81x = 224,636,874.97
  5. Step 5: Solve for x
    x = 224,636,874.97/13,486.81
  6. Step 6: Final answer
    x = 16,656.04

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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.