Home / 18,725.92-28,090.19-7,637.83

Finding the Fourth Proportional to 18,725.92, 28,090.19 and 7,637.83

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Solution

The fourth proportional to 18,725.92, 28,090.19 and 7,637.83 is: 11,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.92 : 28,090.19 = 7,637.83 : x
  2. Step 2: Convert to fraction form
    18,725.92/28,090.19 = 7,637.83/x
  3. Step 3: Cross multiply
    18,725.92x = 28,090.19 × 7,637.83
  4. Step 4: Simplify right side
    18,725.92x = 214,548,044.76
  5. Step 5: Solve for x
    x = 214,548,044.76/18,725.92
  6. Step 6: Final answer
    x = 11,457.28

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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.