Home / 14,396.73-19,868.25-8,428.85

Finding the Fourth Proportional to 14,396.73, 19,868.25 and 8,428.85

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Solution

The fourth proportional to 14,396.73, 19,868.25 and 8,428.85 is: 11,632.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.73 : 19,868.25 = 8,428.85 : x
  2. Step 2: Convert to fraction form
    14,396.73/19,868.25 = 8,428.85/x
  3. Step 3: Cross multiply
    14,396.73x = 19,868.25 × 8,428.85
  4. Step 4: Simplify right side
    14,396.73x = 167,466,499.01
  5. Step 5: Solve for x
    x = 167,466,499.01/14,396.73
  6. Step 6: Final answer
    x = 11,632.26

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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.