Home / 13,537.80-20,308.91-4,177.80

Finding the Fourth Proportional to 13,537.80, 20,308.91 and 4,177.80

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Solution

The fourth proportional to 13,537.80, 20,308.91 and 4,177.80 is: 6,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.80 : 20,308.91 = 4,177.80 : x
  2. Step 2: Convert to fraction form
    13,537.80/20,308.91 = 4,177.80/x
  3. Step 3: Cross multiply
    13,537.80x = 20,308.91 × 4,177.80
  4. Step 4: Simplify right side
    13,537.80x = 84,846,543.31
  5. Step 5: Solve for x
    x = 84,846,543.31/13,537.80
  6. Step 6: Final answer
    x = 6,267.38

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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.