Home / 10,418.28-15,627.41-5,222.94

Finding the Fourth Proportional to 10,418.28, 15,627.41 and 5,222.94

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Solution

The fourth proportional to 10,418.28, 15,627.41 and 5,222.94 is: 7,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.28 : 15,627.41 = 5,222.94 : x
  2. Step 2: Convert to fraction form
    10,418.28/15,627.41 = 5,222.94/x
  3. Step 3: Cross multiply
    10,418.28x = 15,627.41 × 5,222.94
  4. Step 4: Simplify right side
    10,418.28x = 81,621,024.79
  5. Step 5: Solve for x
    x = 81,621,024.79/10,418.28
  6. Step 6: Final answer
    x = 7,834.40

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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.