Home / 18,283.46-27,430.36-5,135.95

Finding the Fourth Proportional to 18,283.46, 27,430.36 and 5,135.95

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Solution

The fourth proportional to 18,283.46, 27,430.36 and 5,135.95 is: 7,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.46 : 27,430.36 = 5,135.95 : x
  2. Step 2: Convert to fraction form
    18,283.46/27,430.36 = 5,135.95/x
  3. Step 3: Cross multiply
    18,283.46x = 27,430.36 × 5,135.95
  4. Step 4: Simplify right side
    18,283.46x = 140,880,876.03
  5. Step 5: Solve for x
    x = 140,880,876.03/18,283.46
  6. Step 6: Final answer
    x = 7,705.37

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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.