Home / 12,718.09-19,082.94-6,474.89

Finding the Fourth Proportional to 12,718.09, 19,082.94 and 6,474.89

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Solution

The fourth proportional to 12,718.09, 19,082.94 and 6,474.89 is: 9,715.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.09 : 19,082.94 = 6,474.89 : x
  2. Step 2: Convert to fraction form
    12,718.09/19,082.94 = 6,474.89/x
  3. Step 3: Cross multiply
    12,718.09x = 19,082.94 × 6,474.89
  4. Step 4: Simplify right side
    12,718.09x = 123,559,889.88
  5. Step 5: Solve for x
    x = 123,559,889.88/12,718.09
  6. Step 6: Final answer
    x = 9,715.29

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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.