Home / 10,820.88-16,215.93-4,809.60

Finding the Fourth Proportional to 10,820.88, 16,215.93 and 4,809.60

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Solution

The fourth proportional to 10,820.88, 16,215.93 and 4,809.60 is: 7,207.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.88 : 16,215.93 = 4,809.60 : x
  2. Step 2: Convert to fraction form
    10,820.88/16,215.93 = 4,809.60/x
  3. Step 3: Cross multiply
    10,820.88x = 16,215.93 × 4,809.60
  4. Step 4: Simplify right side
    10,820.88x = 77,992,136.93
  5. Step 5: Solve for x
    x = 77,992,136.93/10,820.88
  6. Step 6: Final answer
    x = 7,207.56

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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.