Home / 13,272.50-18,316.32-7,684.58

Finding the Fourth Proportional to 13,272.50, 18,316.32 and 7,684.58

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Solution

The fourth proportional to 13,272.50, 18,316.32 and 7,684.58 is: 10,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.50 : 18,316.32 = 7,684.58 : x
  2. Step 2: Convert to fraction form
    13,272.50/18,316.32 = 7,684.58/x
  3. Step 3: Cross multiply
    13,272.50x = 18,316.32 × 7,684.58
  4. Step 4: Simplify right side
    13,272.50x = 140,753,226.35
  5. Step 5: Solve for x
    x = 140,753,226.35/13,272.50
  6. Step 6: Final answer
    x = 10,604.88

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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.