Home / 13,647.34-20,478.96-5,326.92

Finding the Fourth Proportional to 13,647.34, 20,478.96 and 5,326.92

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Solution

The fourth proportional to 13,647.34, 20,478.96 and 5,326.92 is: 7,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.34 : 20,478.96 = 5,326.92 : x
  2. Step 2: Convert to fraction form
    13,647.34/20,478.96 = 5,326.92/x
  3. Step 3: Cross multiply
    13,647.34x = 20,478.96 × 5,326.92
  4. Step 4: Simplify right side
    13,647.34x = 109,089,781.60
  5. Step 5: Solve for x
    x = 109,089,781.60/13,647.34
  6. Step 6: Final answer
    x = 7,993.48

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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.