Home / 13,756.26-18,986.76-8,727.42

Finding the Fourth Proportional to 13,756.26, 18,986.76 and 8,727.42

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Solution

The fourth proportional to 13,756.26, 18,986.76 and 8,727.42 is: 12,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.26 : 18,986.76 = 8,727.42 : x
  2. Step 2: Convert to fraction form
    13,756.26/18,986.76 = 8,727.42/x
  3. Step 3: Cross multiply
    13,756.26x = 18,986.76 × 8,727.42
  4. Step 4: Simplify right side
    13,756.26x = 165,705,428.96
  5. Step 5: Solve for x
    x = 165,705,428.96/13,756.26
  6. Step 6: Final answer
    x = 12,045.82

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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.