Home / 10,728.88-16,085.64-4,882.48

Finding the Fourth Proportional to 10,728.88, 16,085.64 and 4,882.48

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Solution

The fourth proportional to 10,728.88, 16,085.64 and 4,882.48 is: 7,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.88 : 16,085.64 = 4,882.48 : x
  2. Step 2: Convert to fraction form
    10,728.88/16,085.64 = 4,882.48/x
  3. Step 3: Cross multiply
    10,728.88x = 16,085.64 × 4,882.48
  4. Step 4: Simplify right side
    10,728.88x = 78,537,815.59
  5. Step 5: Solve for x
    x = 78,537,815.59/10,728.88
  6. Step 6: Final answer
    x = 7,320.22

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1.5x scale

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.