Home / 18,780.50-28,166.14-6,300.25

Finding the Fourth Proportional to 18,780.50, 28,166.14 and 6,300.25

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Solution

The fourth proportional to 18,780.50, 28,166.14 and 6,300.25 is: 9,448.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.50 : 28,166.14 = 6,300.25 : x
  2. Step 2: Convert to fraction form
    18,780.50/28,166.14 = 6,300.25/x
  3. Step 3: Cross multiply
    18,780.50x = 28,166.14 × 6,300.25
  4. Step 4: Simplify right side
    18,780.50x = 177,453,660.99
  5. Step 5: Solve for x
    x = 177,453,660.99/18,780.50
  6. Step 6: Final answer
    x = 9,448.82

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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.