Home / 18,721.53-25,836.03-10,764.63

Finding the Fourth Proportional to 18,721.53, 25,836.03 and 10,764.63

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Solution

The fourth proportional to 18,721.53, 25,836.03 and 10,764.63 is: 14,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.53 : 25,836.03 = 10,764.63 : x
  2. Step 2: Convert to fraction form
    18,721.53/25,836.03 = 10,764.63/x
  3. Step 3: Cross multiply
    18,721.53x = 25,836.03 × 10,764.63
  4. Step 4: Simplify right side
    18,721.53x = 278,115,303.62
  5. Step 5: Solve for x
    x = 278,115,303.62/18,721.53
  6. Step 6: Final answer
    x = 14,855.37

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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.