Home / 15,817.70-21,833.61-11,103.14

Finding the Fourth Proportional to 15,817.70, 21,833.61 and 11,103.14

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Solution

The fourth proportional to 15,817.70, 21,833.61 and 11,103.14 is: 15,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.70 : 21,833.61 = 11,103.14 : x
  2. Step 2: Convert to fraction form
    15,817.70/21,833.61 = 11,103.14/x
  3. Step 3: Cross multiply
    15,817.70x = 21,833.61 × 11,103.14
  4. Step 4: Simplify right side
    15,817.70x = 242,421,628.54
  5. Step 5: Solve for x
    x = 242,421,628.54/15,817.70
  6. Step 6: Final answer
    x = 15,325.97

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1.5x scale

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.