Home / 11,161.62-15,403.29-6,315.96

Finding the Fourth Proportional to 11,161.62, 15,403.29 and 6,315.96

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Solution

The fourth proportional to 11,161.62, 15,403.29 and 6,315.96 is: 8,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.62 : 15,403.29 = 6,315.96 : x
  2. Step 2: Convert to fraction form
    11,161.62/15,403.29 = 6,315.96/x
  3. Step 3: Cross multiply
    11,161.62x = 15,403.29 × 6,315.96
  4. Step 4: Simplify right side
    11,161.62x = 97,286,563.51
  5. Step 5: Solve for x
    x = 97,286,563.51/11,161.62
  6. Step 6: Final answer
    x = 8,716.17

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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.