Home / 11,117.66-16,676.69-3,720.74

Finding the Fourth Proportional to 11,117.66, 16,676.69 and 3,720.74

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Solution

The fourth proportional to 11,117.66, 16,676.69 and 3,720.74 is: 5,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.66 : 16,676.69 = 3,720.74 : x
  2. Step 2: Convert to fraction form
    11,117.66/16,676.69 = 3,720.74/x
  3. Step 3: Cross multiply
    11,117.66x = 16,676.69 × 3,720.74
  4. Step 4: Simplify right side
    11,117.66x = 62,049,525.56
  5. Step 5: Solve for x
    x = 62,049,525.56/11,117.66
  6. Step 6: Final answer
    x = 5,581.17

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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.