Home / 11,812.74-17,720.14-4,318.36

Finding the Fourth Proportional to 11,812.74, 17,720.14 and 4,318.36

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Solution

The fourth proportional to 11,812.74, 17,720.14 and 4,318.36 is: 6,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.74 : 17,720.14 = 4,318.36 : x
  2. Step 2: Convert to fraction form
    11,812.74/17,720.14 = 4,318.36/x
  3. Step 3: Cross multiply
    11,812.74x = 17,720.14 × 4,318.36
  4. Step 4: Simplify right side
    11,812.74x = 76,521,833.58
  5. Step 5: Solve for x
    x = 76,521,833.58/11,812.74
  6. Step 6: Final answer
    x = 6,477.91

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1.5x scale

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.