Home / 12,175.81-16,801.69-6,871.12

Finding the Fourth Proportional to 12,175.81, 16,801.69 and 6,871.12

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Solution

The fourth proportional to 12,175.81, 16,801.69 and 6,871.12 is: 9,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.81 : 16,801.69 = 6,871.12 : x
  2. Step 2: Convert to fraction form
    12,175.81/16,801.69 = 6,871.12/x
  3. Step 3: Cross multiply
    12,175.81x = 16,801.69 × 6,871.12
  4. Step 4: Simplify right side
    12,175.81x = 115,446,428.19
  5. Step 5: Solve for x
    x = 115,446,428.19/12,175.81
  6. Step 6: Final answer
    x = 9,481.62

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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.