Home / 19,186.50-28,781.37-5,335.50

Finding the Fourth Proportional to 19,186.50, 28,781.37 and 5,335.50

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Solution

The fourth proportional to 19,186.50, 28,781.37 and 5,335.50 is: 8,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.50 : 28,781.37 = 5,335.50 : x
  2. Step 2: Convert to fraction form
    19,186.50/28,781.37 = 5,335.50/x
  3. Step 3: Cross multiply
    19,186.50x = 28,781.37 × 5,335.50
  4. Step 4: Simplify right side
    19,186.50x = 153,562,999.64
  5. Step 5: Solve for x
    x = 153,562,999.64/19,186.50
  6. Step 6: Final answer
    x = 8,003.70

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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.