Home / 13,338.26-20,006.96-3,978.35

Finding the Fourth Proportional to 13,338.26, 20,006.96 and 3,978.35

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Solution

The fourth proportional to 13,338.26, 20,006.96 and 3,978.35 is: 5,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.26 : 20,006.96 = 3,978.35 : x
  2. Step 2: Convert to fraction form
    13,338.26/20,006.96 = 3,978.35/x
  3. Step 3: Cross multiply
    13,338.26x = 20,006.96 × 3,978.35
  4. Step 4: Simplify right side
    13,338.26x = 79,594,689.32
  5. Step 5: Solve for x
    x = 79,594,689.32/13,338.26
  6. Step 6: Final answer
    x = 5,967.40

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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.