Home / 18,730.96-28,096.34-7,637.61

Finding the Fourth Proportional to 18,730.96, 28,096.34 and 7,637.61

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Solution

The fourth proportional to 18,730.96, 28,096.34 and 7,637.61 is: 11,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.96 : 28,096.34 = 7,637.61 : x
  2. Step 2: Convert to fraction form
    18,730.96/28,096.34 = 7,637.61/x
  3. Step 3: Cross multiply
    18,730.96x = 28,096.34 × 7,637.61
  4. Step 4: Simplify right side
    18,730.96x = 214,588,887.35
  5. Step 5: Solve for x
    x = 214,588,887.35/18,730.96
  6. Step 6: Final answer
    x = 11,456.37

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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.