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Finding the Fourth Proportional to 13,326.46, 19,990.19 and 3,465.46

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Solution

The fourth proportional to 13,326.46, 19,990.19 and 3,465.46 is: 5,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.46 : 19,990.19 = 3,465.46 : x
  2. Step 2: Convert to fraction form
    13,326.46/19,990.19 = 3,465.46/x
  3. Step 3: Cross multiply
    13,326.46x = 19,990.19 × 3,465.46
  4. Step 4: Simplify right side
    13,326.46x = 69,275,186.51
  5. Step 5: Solve for x
    x = 69,275,186.51/13,326.46
  6. Step 6: Final answer
    x = 5,198.32

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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.