Home / 13,764.04-18,999.22-8,175

Finding the Fourth Proportional to 13,764.04, 18,999.22 and 8,175

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Solution

The fourth proportional to 13,764.04, 18,999.22 and 8,175 is: 11,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.04 : 18,999.22 = 8,175 : x
  2. Step 2: Convert to fraction form
    13,764.04/18,999.22 = 8,175/x
  3. Step 3: Cross multiply
    13,764.04x = 18,999.22 × 8,175
  4. Step 4: Simplify right side
    13,764.04x = 155,318,623.50
  5. Step 5: Solve for x
    x = 155,318,623.50/13,764.04
  6. Step 6: Final answer
    x = 11,284.38

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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.