Home / 13,523.49-18,660.38-7,555.41

Finding the Fourth Proportional to 13,523.49, 18,660.38 and 7,555.41

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Solution

The fourth proportional to 13,523.49, 18,660.38 and 7,555.41 is: 10,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.49 : 18,660.38 = 7,555.41 : x
  2. Step 2: Convert to fraction form
    13,523.49/18,660.38 = 7,555.41/x
  3. Step 3: Cross multiply
    13,523.49x = 18,660.38 × 7,555.41
  4. Step 4: Simplify right side
    13,523.49x = 140,986,783.88
  5. Step 5: Solve for x
    x = 140,986,783.88/13,523.49
  6. Step 6: Final answer
    x = 10,425.33

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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.