Home / 10,653.10-15,982.41-5,110.72

Finding the Fourth Proportional to 10,653.10, 15,982.41 and 5,110.72

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Solution

The fourth proportional to 10,653.10, 15,982.41 and 5,110.72 is: 7,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.10 : 15,982.41 = 5,110.72 : x
  2. Step 2: Convert to fraction form
    10,653.10/15,982.41 = 5,110.72/x
  3. Step 3: Cross multiply
    10,653.10x = 15,982.41 × 5,110.72
  4. Step 4: Simplify right side
    10,653.10x = 81,681,622.44
  5. Step 5: Solve for x
    x = 81,681,622.44/10,653.10
  6. Step 6: Final answer
    x = 7,667.40

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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.