Home / 10,122.40-15,184.32-3,546.64

Finding the Fourth Proportional to 10,122.40, 15,184.32 and 3,546.64

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Solution

The fourth proportional to 10,122.40, 15,184.32 and 3,546.64 is: 5,320.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.40 : 15,184.32 = 3,546.64 : x
  2. Step 2: Convert to fraction form
    10,122.40/15,184.32 = 3,546.64/x
  3. Step 3: Cross multiply
    10,122.40x = 15,184.32 × 3,546.64
  4. Step 4: Simplify right side
    10,122.40x = 53,853,316.68
  5. Step 5: Solve for x
    x = 53,853,316.68/10,122.40
  6. Step 6: Final answer
    x = 5,320.21

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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.