Home / 13,758.48-18,998.33-8,731.62

Finding the Fourth Proportional to 13,758.48, 18,998.33 and 8,731.62

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Solution

The fourth proportional to 13,758.48, 18,998.33 and 8,731.62 is: 12,057.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.48 : 18,998.33 = 8,731.62 : x
  2. Step 2: Convert to fraction form
    13,758.48/18,998.33 = 8,731.62/x
  3. Step 3: Cross multiply
    13,758.48x = 18,998.33 × 8,731.62
  4. Step 4: Simplify right side
    13,758.48x = 165,886,154.54
  5. Step 5: Solve for x
    x = 165,886,154.54/13,758.48
  6. Step 6: Final answer
    x = 12,057.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.