Home / 10,329.86-15,487.20-3,305.81

Finding the Fourth Proportional to 10,329.86, 15,487.20 and 3,305.81

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Solution

The fourth proportional to 10,329.86, 15,487.20 and 3,305.81 is: 4,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.86 : 15,487.20 = 3,305.81 : x
  2. Step 2: Convert to fraction form
    10,329.86/15,487.20 = 3,305.81/x
  3. Step 3: Cross multiply
    10,329.86x = 15,487.20 × 3,305.81
  4. Step 4: Simplify right side
    10,329.86x = 51,197,779.35
  5. Step 5: Solve for x
    x = 51,197,779.35/10,329.86
  6. Step 6: Final answer
    x = 4,956.29

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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.