Home / 18,748.88-28,122.59-4,709.01

Finding the Fourth Proportional to 18,748.88, 28,122.59 and 4,709.01

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Solution

The fourth proportional to 18,748.88, 28,122.59 and 4,709.01 is: 7,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.88 : 28,122.59 = 4,709.01 : x
  2. Step 2: Convert to fraction form
    18,748.88/28,122.59 = 4,709.01/x
  3. Step 3: Cross multiply
    18,748.88x = 28,122.59 × 4,709.01
  4. Step 4: Simplify right side
    18,748.88x = 132,429,533.99
  5. Step 5: Solve for x
    x = 132,429,533.99/18,748.88
  6. Step 6: Final answer
    x = 7,063.33

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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.