Home / 11,189.79-16,786.68-4,612.38

Finding the Fourth Proportional to 11,189.79, 16,786.68 and 4,612.38

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Solution

The fourth proportional to 11,189.79, 16,786.68 and 4,612.38 is: 6,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.79 : 16,786.68 = 4,612.38 : x
  2. Step 2: Convert to fraction form
    11,189.79/16,786.68 = 4,612.38/x
  3. Step 3: Cross multiply
    11,189.79x = 16,786.68 × 4,612.38
  4. Step 4: Simplify right side
    11,189.79x = 77,426,547.10
  5. Step 5: Solve for x
    x = 77,426,547.10/11,189.79
  6. Step 6: Final answer
    x = 6,919.39

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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.