Home / 10,120.83-15,182.33-2,725.40

Finding the Fourth Proportional to 10,120.83, 15,182.33 and 2,725.40

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Solution

The fourth proportional to 10,120.83, 15,182.33 and 2,725.40 is: 4,088.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.83 : 15,182.33 = 2,725.40 : x
  2. Step 2: Convert to fraction form
    10,120.83/15,182.33 = 2,725.40/x
  3. Step 3: Cross multiply
    10,120.83x = 15,182.33 × 2,725.40
  4. Step 4: Simplify right side
    10,120.83x = 41,377,832.64
  5. Step 5: Solve for x
    x = 41,377,832.64/10,120.83
  6. Step 6: Final answer
    x = 4,088.38

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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.