Home / 18,889.47-28,334.03-7,042.84

Finding the Fourth Proportional to 18,889.47, 28,334.03 and 7,042.84

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Solution

The fourth proportional to 18,889.47, 28,334.03 and 7,042.84 is: 10,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.47 : 28,334.03 = 7,042.84 : x
  2. Step 2: Convert to fraction form
    18,889.47/28,334.03 = 7,042.84/x
  3. Step 3: Cross multiply
    18,889.47x = 28,334.03 × 7,042.84
  4. Step 4: Simplify right side
    18,889.47x = 199,552,039.85
  5. Step 5: Solve for x
    x = 199,552,039.85/18,889.47
  6. Step 6: Final answer
    x = 10,564.19

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1.5x scale

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.