Home / 10,429.35-15,642.39-3,409.31

Finding the Fourth Proportional to 10,429.35, 15,642.39 and 3,409.31

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Solution

The fourth proportional to 10,429.35, 15,642.39 and 3,409.31 is: 5,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.35 : 15,642.39 = 3,409.31 : x
  2. Step 2: Convert to fraction form
    10,429.35/15,642.39 = 3,409.31/x
  3. Step 3: Cross multiply
    10,429.35x = 15,642.39 × 3,409.31
  4. Step 4: Simplify right side
    10,429.35x = 53,329,678.44
  5. Step 5: Solve for x
    x = 53,329,678.44/10,429.35
  6. Step 6: Final answer
    x = 5,113.42

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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.