Home / 12,125.91-18,181.80-6,858.24

Finding the Fourth Proportional to 12,125.91, 18,181.80 and 6,858.24

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Solution

The fourth proportional to 12,125.91, 18,181.80 and 6,858.24 is: 10,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.91 : 18,181.80 = 6,858.24 : x
  2. Step 2: Convert to fraction form
    12,125.91/18,181.80 = 6,858.24/x
  3. Step 3: Cross multiply
    12,125.91x = 18,181.80 × 6,858.24
  4. Step 4: Simplify right side
    12,125.91x = 124,695,148.03
  5. Step 5: Solve for x
    x = 124,695,148.03/12,125.91
  6. Step 6: Final answer
    x = 10,283.36

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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.