Home / 12,017.64-18,026.46-7,861.14

Finding the Fourth Proportional to 12,017.64, 18,026.46 and 7,861.14

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Solution

The fourth proportional to 12,017.64, 18,026.46 and 7,861.14 is: 11,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.64 : 18,026.46 = 7,861.14 : x
  2. Step 2: Convert to fraction form
    12,017.64/18,026.46 = 7,861.14/x
  3. Step 3: Cross multiply
    12,017.64x = 18,026.46 × 7,861.14
  4. Step 4: Simplify right side
    12,017.64x = 141,708,525.76
  5. Step 5: Solve for x
    x = 141,708,525.76/12,017.64
  6. Step 6: Final answer
    x = 11,791.71

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.