Home / 17,374.80-23,968.40-10,990.64

Finding the Fourth Proportional to 17,374.80, 23,968.40 and 10,990.64

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Solution

The fourth proportional to 17,374.80, 23,968.40 and 10,990.64 is: 15,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,374.80 : 23,968.40 = 10,990.64 : x
  2. Step 2: Convert to fraction form
    17,374.80/23,968.40 = 10,990.64/x
  3. Step 3: Cross multiply
    17,374.80x = 23,968.40 × 10,990.64
  4. Step 4: Simplify right side
    17,374.80x = 263,427,880.98
  5. Step 5: Solve for x
    x = 263,427,880.98/17,374.80
  6. Step 6: Final answer
    x = 15,161.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.