Home / 11,284.36-15,679.81-11,162.68

Finding the Fourth Proportional to 11,284.36, 15,679.81 and 11,162.68

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Solution

The fourth proportional to 11,284.36, 15,679.81 and 11,162.68 is: 15,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,284.36 : 15,679.81 = 11,162.68 : x
  2. Step 2: Convert to fraction form
    11,284.36/15,679.81 = 11,162.68/x
  3. Step 3: Cross multiply
    11,284.36x = 15,679.81 × 11,162.68
  4. Step 4: Simplify right side
    11,284.36x = 175,028,701.49
  5. Step 5: Solve for x
    x = 175,028,701.49/11,284.36
  6. Step 6: Final answer
    x = 15,510.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.