Home / 12,558.52-18,837.78-4,765.48

Finding the Fourth Proportional to 12,558.52, 18,837.78 and 4,765.48

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Solution

The fourth proportional to 12,558.52, 18,837.78 and 4,765.48 is: 7,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.52 : 18,837.78 = 4,765.48 : x
  2. Step 2: Convert to fraction form
    12,558.52/18,837.78 = 4,765.48/x
  3. Step 3: Cross multiply
    12,558.52x = 18,837.78 × 4,765.48
  4. Step 4: Simplify right side
    12,558.52x = 89,771,063.83
  5. Step 5: Solve for x
    x = 89,771,063.83/12,558.52
  6. Step 6: Final answer
    x = 7,148.22

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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.