Home / 14,145.91-19,519.17-8,176.42

Finding the Fourth Proportional to 14,145.91, 19,519.17 and 8,176.42

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Solution

The fourth proportional to 14,145.91, 19,519.17 and 8,176.42 is: 11,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.91 : 19,519.17 = 8,176.42 : x
  2. Step 2: Convert to fraction form
    14,145.91/19,519.17 = 8,176.42/x
  3. Step 3: Cross multiply
    14,145.91x = 19,519.17 × 8,176.42
  4. Step 4: Simplify right side
    14,145.91x = 159,596,931.97
  5. Step 5: Solve for x
    x = 159,596,931.97/14,145.91
  6. Step 6: Final answer
    x = 11,282.20

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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.