Home / 18,705.20-28,049.54-7,010.19

Finding the Fourth Proportional to 18,705.20, 28,049.54 and 7,010.19

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Solution

The fourth proportional to 18,705.20, 28,049.54 and 7,010.19 is: 10,512.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.20 : 28,049.54 = 7,010.19 : x
  2. Step 2: Convert to fraction form
    18,705.20/28,049.54 = 7,010.19/x
  3. Step 3: Cross multiply
    18,705.20x = 28,049.54 × 7,010.19
  4. Step 4: Simplify right side
    18,705.20x = 196,632,569.76
  5. Step 5: Solve for x
    x = 196,632,569.76/18,705.20
  6. Step 6: Final answer
    x = 10,512.19

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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.