Home / 13,546.40-20,319.60-11,818.40

Finding the Fourth Proportional to 13,546.40, 20,319.60 and 11,818.40

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Solution

The fourth proportional to 13,546.40, 20,319.60 and 11,818.40 is: 17,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.40 : 20,319.60 = 11,818.40 : x
  2. Step 2: Convert to fraction form
    13,546.40/20,319.60 = 11,818.40/x
  3. Step 3: Cross multiply
    13,546.40x = 20,319.60 × 11,818.40
  4. Step 4: Simplify right side
    13,546.40x = 240,145,160.64
  5. Step 5: Solve for x
    x = 240,145,160.64/13,546.40
  6. Step 6: Final answer
    x = 17,727.60

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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.