Home / 10,418.20-15,629.32-4,495.07

Finding the Fourth Proportional to 10,418.20, 15,629.32 and 4,495.07

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Solution

The fourth proportional to 10,418.20, 15,629.32 and 4,495.07 is: 6,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.20 : 15,629.32 = 4,495.07 : x
  2. Step 2: Convert to fraction form
    10,418.20/15,629.32 = 4,495.07/x
  3. Step 3: Cross multiply
    10,418.20x = 15,629.32 × 4,495.07
  4. Step 4: Simplify right side
    10,418.20x = 70,254,887.45
  5. Step 5: Solve for x
    x = 70,254,887.45/10,418.20
  6. Step 6: Final answer
    x = 6,743.48

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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.