Home / 11,106.12-15,333.12-6,920.04

Finding the Fourth Proportional to 11,106.12, 15,333.12 and 6,920.04

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Solution

The fourth proportional to 11,106.12, 15,333.12 and 6,920.04 is: 9,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.12 : 15,333.12 = 6,920.04 : x
  2. Step 2: Convert to fraction form
    11,106.12/15,333.12 = 6,920.04/x
  3. Step 3: Cross multiply
    11,106.12x = 15,333.12 × 6,920.04
  4. Step 4: Simplify right side
    11,106.12x = 106,105,803.72
  5. Step 5: Solve for x
    x = 106,105,803.72/11,106.12
  6. Step 6: Final answer
    x = 9,553.81

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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.