Home / 13,338.27-20,007.27-3,978.18

Finding the Fourth Proportional to 13,338.27, 20,007.27 and 3,978.18

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Solution

The fourth proportional to 13,338.27, 20,007.27 and 3,978.18 is: 5,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.27 : 20,007.27 = 3,978.18 : x
  2. Step 2: Convert to fraction form
    13,338.27/20,007.27 = 3,978.18/x
  3. Step 3: Cross multiply
    13,338.27x = 20,007.27 × 3,978.18
  4. Step 4: Simplify right side
    13,338.27x = 79,592,521.37
  5. Step 5: Solve for x
    x = 79,592,521.37/13,338.27
  6. Step 6: Final answer
    x = 5,967.23

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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.