Home / 10,274.45-15,399.32-4,720.14

Finding the Fourth Proportional to 10,274.45, 15,399.32 and 4,720.14

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Solution

The fourth proportional to 10,274.45, 15,399.32 and 4,720.14 is: 7,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.45 : 15,399.32 = 4,720.14 : x
  2. Step 2: Convert to fraction form
    10,274.45/15,399.32 = 4,720.14/x
  3. Step 3: Cross multiply
    10,274.45x = 15,399.32 × 4,720.14
  4. Step 4: Simplify right side
    10,274.45x = 72,686,922.70
  5. Step 5: Solve for x
    x = 72,686,922.70/10,274.45
  6. Step 6: Final answer
    x = 7,074.54

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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.