Home / 10,341.28-15,514.32-3,415.36

Finding the Fourth Proportional to 10,341.28, 15,514.32 and 3,415.36

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Solution

The fourth proportional to 10,341.28, 15,514.32 and 3,415.36 is: 5,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,341.28 : 15,514.32 = 3,415.36 : x
  2. Step 2: Convert to fraction form
    10,341.28/15,514.32 = 3,415.36/x
  3. Step 3: Cross multiply
    10,341.28x = 15,514.32 × 3,415.36
  4. Step 4: Simplify right side
    10,341.28x = 52,986,987.96
  5. Step 5: Solve for x
    x = 52,986,987.96/10,341.28
  6. Step 6: Final answer
    x = 5,123.83

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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.