Home / 18,723.56-28,075.88-6,239.09

Finding the Fourth Proportional to 18,723.56, 28,075.88 and 6,239.09

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Solution

The fourth proportional to 18,723.56, 28,075.88 and 6,239.09 is: 9,355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.56 : 28,075.88 = 6,239.09 : x
  2. Step 2: Convert to fraction form
    18,723.56/28,075.88 = 6,239.09/x
  3. Step 3: Cross multiply
    18,723.56x = 28,075.88 × 6,239.09
  4. Step 4: Simplify right side
    18,723.56x = 175,168,027.94
  5. Step 5: Solve for x
    x = 175,168,027.94/18,723.56
  6. Step 6: Final answer
    x = 9,355.49

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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.