Home / 13,899.80-20,849.60-5,573.86

Finding the Fourth Proportional to 13,899.80, 20,849.60 and 5,573.86

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Solution

The fourth proportional to 13,899.80, 20,849.60 and 5,573.86 is: 8,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.80 : 20,849.60 = 5,573.86 : x
  2. Step 2: Convert to fraction form
    13,899.80/20,849.60 = 5,573.86/x
  3. Step 3: Cross multiply
    13,899.80x = 20,849.60 × 5,573.86
  4. Step 4: Simplify right side
    13,899.80x = 116,212,619.34
  5. Step 5: Solve for x
    x = 116,212,619.34/13,899.80
  6. Step 6: Final answer
    x = 8,360.74

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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.