Home / 12,136.94-18,082.73-11,965.76

Finding the Fourth Proportional to 12,136.94, 18,082.73 and 11,965.76

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Solution

The fourth proportional to 12,136.94, 18,082.73 and 11,965.76 is: 17,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.94 : 18,082.73 = 11,965.76 : x
  2. Step 2: Convert to fraction form
    12,136.94/18,082.73 = 11,965.76/x
  3. Step 3: Cross multiply
    12,136.94x = 18,082.73 × 11,965.76
  4. Step 4: Simplify right side
    12,136.94x = 216,373,607.32
  5. Step 5: Solve for x
    x = 216,373,607.32/12,136.94
  6. Step 6: Final answer
    x = 17,827.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.