Home / 13,386.15-20,057.33-8,105.16

Finding the Fourth Proportional to 13,386.15, 20,057.33 and 8,105.16

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Solution

The fourth proportional to 13,386.15, 20,057.33 and 8,105.16 is: 12,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.15 : 20,057.33 = 8,105.16 : x
  2. Step 2: Convert to fraction form
    13,386.15/20,057.33 = 8,105.16/x
  3. Step 3: Cross multiply
    13,386.15x = 20,057.33 × 8,105.16
  4. Step 4: Simplify right side
    13,386.15x = 162,567,828.30
  5. Step 5: Solve for x
    x = 162,567,828.30/13,386.15
  6. Step 6: Final answer
    x = 12,144.48

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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.