Home / 13,551.35-18,701.14-8,173.76

Finding the Fourth Proportional to 13,551.35, 18,701.14 and 8,173.76

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Solution

The fourth proportional to 13,551.35, 18,701.14 and 8,173.76 is: 11,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.35 : 18,701.14 = 8,173.76 : x
  2. Step 2: Convert to fraction form
    13,551.35/18,701.14 = 8,173.76/x
  3. Step 3: Cross multiply
    13,551.35x = 18,701.14 × 8,173.76
  4. Step 4: Simplify right side
    13,551.35x = 152,858,630.09
  5. Step 5: Solve for x
    x = 152,858,630.09/13,551.35
  6. Step 6: Final answer
    x = 11,279.96

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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.