Home / 18,746.70-28,106.05-11,349.38

Finding the Fourth Proportional to 18,746.70, 28,106.05 and 11,349.38

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Solution

The fourth proportional to 18,746.70, 28,106.05 and 11,349.38 is: 17,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.70 : 28,106.05 = 11,349.38 : x
  2. Step 2: Convert to fraction form
    18,746.70/28,106.05 = 11,349.38/x
  3. Step 3: Cross multiply
    18,746.70x = 28,106.05 × 11,349.38
  4. Step 4: Simplify right side
    18,746.70x = 318,986,241.75
  5. Step 5: Solve for x
    x = 318,986,241.75/18,746.70
  6. Step 6: Final answer
    x = 17,015.59

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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.