Home / 12,975.89-19,452.31-4,762.13

Finding the Fourth Proportional to 12,975.89, 19,452.31 and 4,762.13

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Solution

The fourth proportional to 12,975.89, 19,452.31 and 4,762.13 is: 7,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.89 : 19,452.31 = 4,762.13 : x
  2. Step 2: Convert to fraction form
    12,975.89/19,452.31 = 4,762.13/x
  3. Step 3: Cross multiply
    12,975.89x = 19,452.31 × 4,762.13
  4. Step 4: Simplify right side
    12,975.89x = 92,634,319.85
  5. Step 5: Solve for x
    x = 92,634,319.85/12,975.89
  6. Step 6: Final answer
    x = 7,138.96

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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.