Home / 18,140.75-27,212.85-7,048.30

Finding the Fourth Proportional to 18,140.75, 27,212.85 and 7,048.30

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Solution

The fourth proportional to 18,140.75, 27,212.85 and 7,048.30 is: 10,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.75 : 27,212.85 = 7,048.30 : x
  2. Step 2: Convert to fraction form
    18,140.75/27,212.85 = 7,048.30/x
  3. Step 3: Cross multiply
    18,140.75x = 27,212.85 × 7,048.30
  4. Step 4: Simplify right side
    18,140.75x = 191,804,262.62
  5. Step 5: Solve for x
    x = 191,804,262.62/18,140.75
  6. Step 6: Final answer
    x = 10,573.12

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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.