Home / 12,528.67-18,795.16-4,209.48

Finding the Fourth Proportional to 12,528.67, 18,795.16 and 4,209.48

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Solution

The fourth proportional to 12,528.67, 18,795.16 and 4,209.48 is: 6,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.67 : 18,795.16 = 4,209.48 : x
  2. Step 2: Convert to fraction form
    12,528.67/18,795.16 = 4,209.48/x
  3. Step 3: Cross multiply
    12,528.67x = 18,795.16 × 4,209.48
  4. Step 4: Simplify right side
    12,528.67x = 79,117,850.12
  5. Step 5: Solve for x
    x = 79,117,850.12/12,528.67
  6. Step 6: Final answer
    x = 6,314.94

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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.