Home / 13,713.38-20,566.86-3,853.60

Finding the Fourth Proportional to 13,713.38, 20,566.86 and 3,853.60

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Solution

The fourth proportional to 13,713.38, 20,566.86 and 3,853.60 is: 5,779.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.38 : 20,566.86 = 3,853.60 : x
  2. Step 2: Convert to fraction form
    13,713.38/20,566.86 = 3,853.60/x
  3. Step 3: Cross multiply
    13,713.38x = 20,566.86 × 3,853.60
  4. Step 4: Simplify right side
    13,713.38x = 79,256,451.70
  5. Step 5: Solve for x
    x = 79,256,451.70/13,713.38
  6. Step 6: Final answer
    x = 5,779.50

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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.