Home / 12,142.04-16,756.73-8,101.91

Finding the Fourth Proportional to 12,142.04, 16,756.73 and 8,101.91

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Solution

The fourth proportional to 12,142.04, 16,756.73 and 8,101.91 is: 11,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.04 : 16,756.73 = 8,101.91 : x
  2. Step 2: Convert to fraction form
    12,142.04/16,756.73 = 8,101.91/x
  3. Step 3: Cross multiply
    12,142.04x = 16,756.73 × 8,101.91
  4. Step 4: Simplify right side
    12,142.04x = 135,761,394.06
  5. Step 5: Solve for x
    x = 135,761,394.06/12,142.04
  6. Step 6: Final answer
    x = 11,181.11

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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.