Home / 10,411.88-15,619.12-3,392.60

Finding the Fourth Proportional to 10,411.88, 15,619.12 and 3,392.60

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Solution

The fourth proportional to 10,411.88, 15,619.12 and 3,392.60 is: 5,089.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.88 : 15,619.12 = 3,392.60 : x
  2. Step 2: Convert to fraction form
    10,411.88/15,619.12 = 3,392.60/x
  3. Step 3: Cross multiply
    10,411.88x = 15,619.12 × 3,392.60
  4. Step 4: Simplify right side
    10,411.88x = 52,989,457.08
  5. Step 5: Solve for x
    x = 52,989,457.08/10,411.88
  6. Step 6: Final answer
    x = 5,089.33

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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.