Home / 13,476.20-18,591.70-8,169.08

Finding the Fourth Proportional to 13,476.20, 18,591.70 and 8,169.08

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Solution

The fourth proportional to 13,476.20, 18,591.70 and 8,169.08 is: 11,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.20 : 18,591.70 = 8,169.08 : x
  2. Step 2: Convert to fraction form
    13,476.20/18,591.70 = 8,169.08/x
  3. Step 3: Cross multiply
    13,476.20x = 18,591.70 × 8,169.08
  4. Step 4: Simplify right side
    13,476.20x = 151,877,084.64
  5. Step 5: Solve for x
    x = 151,877,084.64/13,476.20
  6. Step 6: Final answer
    x = 11,270.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.