Home / 13,976.10-19,286.28-8,006.40

Finding the Fourth Proportional to 13,976.10, 19,286.28 and 8,006.40

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Solution

The fourth proportional to 13,976.10, 19,286.28 and 8,006.40 is: 11,048.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.10 : 19,286.28 = 8,006.40 : x
  2. Step 2: Convert to fraction form
    13,976.10/19,286.28 = 8,006.40/x
  3. Step 3: Cross multiply
    13,976.10x = 19,286.28 × 8,006.40
  4. Step 4: Simplify right side
    13,976.10x = 154,413,672.19
  5. Step 5: Solve for x
    x = 154,413,672.19/13,976.10
  6. Step 6: Final answer
    x = 11,048.41

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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.