Home / 12,700.49-19,063.03-6,131.28

Finding the Fourth Proportional to 12,700.49, 19,063.03 and 6,131.28

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Solution

The fourth proportional to 12,700.49, 19,063.03 and 6,131.28 is: 9,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.49 : 19,063.03 = 6,131.28 : x
  2. Step 2: Convert to fraction form
    12,700.49/19,063.03 = 6,131.28/x
  3. Step 3: Cross multiply
    12,700.49x = 19,063.03 × 6,131.28
  4. Step 4: Simplify right side
    12,700.49x = 116,880,806.91
  5. Step 5: Solve for x
    x = 116,880,806.91/12,700.49
  6. Step 6: Final answer
    x = 9,202.86

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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.