Home / 13,575.08-18,732.32-9,329.88

Finding the Fourth Proportional to 13,575.08, 18,732.32 and 9,329.88

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Solution

The fourth proportional to 13,575.08, 18,732.32 and 9,329.88 is: 12,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.08 : 18,732.32 = 9,329.88 : x
  2. Step 2: Convert to fraction form
    13,575.08/18,732.32 = 9,329.88/x
  3. Step 3: Cross multiply
    13,575.08x = 18,732.32 × 9,329.88
  4. Step 4: Simplify right side
    13,575.08x = 174,770,297.72
  5. Step 5: Solve for x
    x = 174,770,297.72/13,575.08
  6. Step 6: Final answer
    x = 12,874.35

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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.