Home / 10,328.98-15,493.68-3,670.78

Finding the Fourth Proportional to 10,328.98, 15,493.68 and 3,670.78

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Solution

The fourth proportional to 10,328.98, 15,493.68 and 3,670.78 is: 5,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328.98 : 15,493.68 = 3,670.78 : x
  2. Step 2: Convert to fraction form
    10,328.98/15,493.68 = 3,670.78/x
  3. Step 3: Cross multiply
    10,328.98x = 15,493.68 × 3,670.78
  4. Step 4: Simplify right side
    10,328.98x = 56,873,890.67
  5. Step 5: Solve for x
    x = 56,873,890.67/10,328.98
  6. Step 6: Final answer
    x = 5,506.24

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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.