Home / 18,231.45-27,336.23-7,124.90

Finding the Fourth Proportional to 18,231.45, 27,336.23 and 7,124.90

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Solution

The fourth proportional to 18,231.45, 27,336.23 and 7,124.90 is: 10,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.45 : 27,336.23 = 7,124.90 : x
  2. Step 2: Convert to fraction form
    18,231.45/27,336.23 = 7,124.90/x
  3. Step 3: Cross multiply
    18,231.45x = 27,336.23 × 7,124.90
  4. Step 4: Simplify right side
    18,231.45x = 194,768,030.27
  5. Step 5: Solve for x
    x = 194,768,030.27/18,231.45
  6. Step 6: Final answer
    x = 10,683.08

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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.