Home / 18,876.67-28,295.57-10,109.23

Finding the Fourth Proportional to 18,876.67, 28,295.57 and 10,109.23

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Solution

The fourth proportional to 18,876.67, 28,295.57 and 10,109.23 is: 15,153.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.67 : 28,295.57 = 10,109.23 : x
  2. Step 2: Convert to fraction form
    18,876.67/28,295.57 = 10,109.23/x
  3. Step 3: Cross multiply
    18,876.67x = 28,295.57 × 10,109.23
  4. Step 4: Simplify right side
    18,876.67x = 286,046,374.56
  5. Step 5: Solve for x
    x = 286,046,374.56/18,876.67
  6. Step 6: Final answer
    x = 15,153.43

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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.