Home / 12,175.04-16,801.80-7,143.12

Finding the Fourth Proportional to 12,175.04, 16,801.80 and 7,143.12

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Solution

The fourth proportional to 12,175.04, 16,801.80 and 7,143.12 is: 9,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.04 : 16,801.80 = 7,143.12 : x
  2. Step 2: Convert to fraction form
    12,175.04/16,801.80 = 7,143.12/x
  3. Step 3: Cross multiply
    12,175.04x = 16,801.80 × 7,143.12
  4. Step 4: Simplify right side
    12,175.04x = 120,017,273.62
  5. Step 5: Solve for x
    x = 120,017,273.62/12,175.04
  6. Step 6: Final answer
    x = 9,857.65

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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.