Home / 12,148.18-18,227.03-4,751.36

Finding the Fourth Proportional to 12,148.18, 18,227.03 and 4,751.36

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Solution

The fourth proportional to 12,148.18, 18,227.03 and 4,751.36 is: 7,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.18 : 18,227.03 = 4,751.36 : x
  2. Step 2: Convert to fraction form
    12,148.18/18,227.03 = 4,751.36/x
  3. Step 3: Cross multiply
    12,148.18x = 18,227.03 × 4,751.36
  4. Step 4: Simplify right side
    12,148.18x = 86,603,134.72
  5. Step 5: Solve for x
    x = 86,603,134.72/12,148.18
  6. Step 6: Final answer
    x = 7,128.90

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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.