Home / 19,105.01-28,623.61-7,987.19

Finding the Fourth Proportional to 19,105.01, 28,623.61 and 7,987.19

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Solution

The fourth proportional to 19,105.01, 28,623.61 and 7,987.19 is: 11,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.01 : 28,623.61 = 7,987.19 : x
  2. Step 2: Convert to fraction form
    19,105.01/28,623.61 = 7,987.19/x
  3. Step 3: Cross multiply
    19,105.01x = 28,623.61 × 7,987.19
  4. Step 4: Simplify right side
    19,105.01x = 228,622,211.56
  5. Step 5: Solve for x
    x = 228,622,211.56/19,105.01
  6. Step 6: Final answer
    x = 11,966.61

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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.