Home / 11,722.11-16,176.69-6,417.42

Finding the Fourth Proportional to 11,722.11, 16,176.69 and 6,417.42

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Solution

The fourth proportional to 11,722.11, 16,176.69 and 6,417.42 is: 8,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.11 : 16,176.69 = 6,417.42 : x
  2. Step 2: Convert to fraction form
    11,722.11/16,176.69 = 6,417.42/x
  3. Step 3: Cross multiply
    11,722.11x = 16,176.69 × 6,417.42
  4. Step 4: Simplify right side
    11,722.11x = 103,812,613.94
  5. Step 5: Solve for x
    x = 103,812,613.94/11,722.11
  6. Step 6: Final answer
    x = 8,856.14

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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.