Home / 10,622.49-15,919.16-5,417.43

Finding the Fourth Proportional to 10,622.49, 15,919.16 and 5,417.43

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Solution

The fourth proportional to 10,622.49, 15,919.16 and 5,417.43 is: 8,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.49 : 15,919.16 = 5,417.43 : x
  2. Step 2: Convert to fraction form
    10,622.49/15,919.16 = 5,417.43/x
  3. Step 3: Cross multiply
    10,622.49x = 15,919.16 × 5,417.43
  4. Step 4: Simplify right side
    10,622.49x = 86,240,907.87
  5. Step 5: Solve for x
    x = 86,240,907.87/10,622.49
  6. Step 6: Final answer
    x = 8,118.71

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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.