Home / 19,288.15-28,943.15-7,609.57

Finding the Fourth Proportional to 19,288.15, 28,943.15 and 7,609.57

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Solution

The fourth proportional to 19,288.15, 28,943.15 and 7,609.57 is: 11,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.15 : 28,943.15 = 7,609.57 : x
  2. Step 2: Convert to fraction form
    19,288.15/28,943.15 = 7,609.57/x
  3. Step 3: Cross multiply
    19,288.15x = 28,943.15 × 7,609.57
  4. Step 4: Simplify right side
    19,288.15x = 220,244,743.18
  5. Step 5: Solve for x
    x = 220,244,743.18/19,288.15
  6. Step 6: Final answer
    x = 11,418.66

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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.