Home / 12,512.26-18,768.93-4,721.68

Finding the Fourth Proportional to 12,512.26, 18,768.93 and 4,721.68

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Solution

The fourth proportional to 12,512.26, 18,768.93 and 4,721.68 is: 7,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.26 : 18,768.93 = 4,721.68 : x
  2. Step 2: Convert to fraction form
    12,512.26/18,768.93 = 4,721.68/x
  3. Step 3: Cross multiply
    12,512.26x = 18,768.93 × 4,721.68
  4. Step 4: Simplify right side
    12,512.26x = 88,620,881.40
  5. Step 5: Solve for x
    x = 88,620,881.40/12,512.26
  6. Step 6: Final answer
    x = 7,082.72

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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.