Home / 11,922.35-17,870.63-5,252.90

Finding the Fourth Proportional to 11,922.35, 17,870.63 and 5,252.90

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Solution

The fourth proportional to 11,922.35, 17,870.63 and 5,252.90 is: 7,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.35 : 17,870.63 = 5,252.90 : x
  2. Step 2: Convert to fraction form
    11,922.35/17,870.63 = 5,252.90/x
  3. Step 3: Cross multiply
    11,922.35x = 17,870.63 × 5,252.90
  4. Step 4: Simplify right side
    11,922.35x = 93,872,690.14
  5. Step 5: Solve for x
    x = 93,872,690.14/11,922.35
  6. Step 6: Final answer
    x = 7,873.67

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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.