Home / 13,641.66-20,462.88-5,321.34

Finding the Fourth Proportional to 13,641.66, 20,462.88 and 5,321.34

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Solution

The fourth proportional to 13,641.66, 20,462.88 and 5,321.34 is: 7,982.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.66 : 20,462.88 = 5,321.34 : x
  2. Step 2: Convert to fraction form
    13,641.66/20,462.88 = 5,321.34/x
  3. Step 3: Cross multiply
    13,641.66x = 20,462.88 × 5,321.34
  4. Step 4: Simplify right side
    13,641.66x = 108,889,941.86
  5. Step 5: Solve for x
    x = 108,889,941.86/13,641.66
  6. Step 6: Final answer
    x = 7,982.16

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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.