Home / 12,005.24-18,007.80-6,158.60

Finding the Fourth Proportional to 12,005.24, 18,007.80 and 6,158.60

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Solution

The fourth proportional to 12,005.24, 18,007.80 and 6,158.60 is: 9,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.24 : 18,007.80 = 6,158.60 : x
  2. Step 2: Convert to fraction form
    12,005.24/18,007.80 = 6,158.60/x
  3. Step 3: Cross multiply
    12,005.24x = 18,007.80 × 6,158.60
  4. Step 4: Simplify right side
    12,005.24x = 110,902,837.08
  5. Step 5: Solve for x
    x = 110,902,837.08/12,005.24
  6. Step 6: Final answer
    x = 9,237.87

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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.