Home / 18,768.05-28,159.93-8,232.64

Finding the Fourth Proportional to 18,768.05, 28,159.93 and 8,232.64

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Solution

The fourth proportional to 18,768.05, 28,159.93 and 8,232.64 is: 12,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.05 : 28,159.93 = 8,232.64 : x
  2. Step 2: Convert to fraction form
    18,768.05/28,159.93 = 8,232.64/x
  3. Step 3: Cross multiply
    18,768.05x = 28,159.93 × 8,232.64
  4. Step 4: Simplify right side
    18,768.05x = 231,830,384.15
  5. Step 5: Solve for x
    x = 231,830,384.15/18,768.05
  6. Step 6: Final answer
    x = 12,352.39

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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.