Home / 13,911.14-20,870.13-4,050.51

Finding the Fourth Proportional to 13,911.14, 20,870.13 and 4,050.51

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Solution

The fourth proportional to 13,911.14, 20,870.13 and 4,050.51 is: 6,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.14 : 20,870.13 = 4,050.51 : x
  2. Step 2: Convert to fraction form
    13,911.14/20,870.13 = 4,050.51/x
  3. Step 3: Cross multiply
    13,911.14x = 20,870.13 × 4,050.51
  4. Step 4: Simplify right side
    13,911.14x = 84,534,545.66
  5. Step 5: Solve for x
    x = 84,534,545.66/13,911.14
  6. Step 6: Final answer
    x = 6,076.75

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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.