Home / 11,106.62-15,325.64-7,133.11

Finding the Fourth Proportional to 11,106.62, 15,325.64 and 7,133.11

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Solution

The fourth proportional to 11,106.62, 15,325.64 and 7,133.11 is: 9,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.62 : 15,325.64 = 7,133.11 : x
  2. Step 2: Convert to fraction form
    11,106.62/15,325.64 = 7,133.11/x
  3. Step 3: Cross multiply
    11,106.62x = 15,325.64 × 7,133.11
  4. Step 4: Simplify right side
    11,106.62x = 109,319,475.94
  5. Step 5: Solve for x
    x = 109,319,475.94/11,106.62
  6. Step 6: Final answer
    x = 9,842.73

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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.