Home / 13,609.02-20,405.10-8,923.34

Finding the Fourth Proportional to 13,609.02, 20,405.10 and 8,923.34

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Solution

The fourth proportional to 13,609.02, 20,405.10 and 8,923.34 is: 13,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.02 : 20,405.10 = 8,923.34 : x
  2. Step 2: Convert to fraction form
    13,609.02/20,405.10 = 8,923.34/x
  3. Step 3: Cross multiply
    13,609.02x = 20,405.10 × 8,923.34
  4. Step 4: Simplify right side
    13,609.02x = 182,081,645.03
  5. Step 5: Solve for x
    x = 182,081,645.03/13,609.02
  6. Step 6: Final answer
    x = 13,379.48

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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.