Home / 18,951.15-28,389.79-11,537.22

Finding the Fourth Proportional to 18,951.15, 28,389.79 and 11,537.22

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Solution

The fourth proportional to 18,951.15, 28,389.79 and 11,537.22 is: 17,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.15 : 28,389.79 = 11,537.22 : x
  2. Step 2: Convert to fraction form
    18,951.15/28,389.79 = 11,537.22/x
  3. Step 3: Cross multiply
    18,951.15x = 28,389.79 × 11,537.22
  4. Step 4: Simplify right side
    18,951.15x = 327,539,373.87
  5. Step 5: Solve for x
    x = 327,539,373.87/18,951.15
  6. Step 6: Final answer
    x = 17,283.35

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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.