Home / 13,845.62-19,106.29-7,876.73

Finding the Fourth Proportional to 13,845.62, 19,106.29 and 7,876.73

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Solution

The fourth proportional to 13,845.62, 19,106.29 and 7,876.73 is: 10,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.62 : 19,106.29 = 7,876.73 : x
  2. Step 2: Convert to fraction form
    13,845.62/19,106.29 = 7,876.73/x
  3. Step 3: Cross multiply
    13,845.62x = 19,106.29 × 7,876.73
  4. Step 4: Simplify right side
    13,845.62x = 150,495,135.40
  5. Step 5: Solve for x
    x = 150,495,135.40/13,845.62
  6. Step 6: Final answer
    x = 10,869.51

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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.