Home / 18,740.06-28,110.08-7,651.97

Finding the Fourth Proportional to 18,740.06, 28,110.08 and 7,651.97

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Solution

The fourth proportional to 18,740.06, 28,110.08 and 7,651.97 is: 11,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.06 : 28,110.08 = 7,651.97 : x
  2. Step 2: Convert to fraction form
    18,740.06/28,110.08 = 7,651.97/x
  3. Step 3: Cross multiply
    18,740.06x = 28,110.08 × 7,651.97
  4. Step 4: Simplify right side
    18,740.06x = 215,097,348.31
  5. Step 5: Solve for x
    x = 215,097,348.31/18,740.06
  6. Step 6: Final answer
    x = 11,477.95

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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.