Home / 10,920.54-16,381.60-3,528.48

Finding the Fourth Proportional to 10,920.54, 16,381.60 and 3,528.48

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Solution

The fourth proportional to 10,920.54, 16,381.60 and 3,528.48 is: 5,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.54 : 16,381.60 = 3,528.48 : x
  2. Step 2: Convert to fraction form
    10,920.54/16,381.60 = 3,528.48/x
  3. Step 3: Cross multiply
    10,920.54x = 16,381.60 × 3,528.48
  4. Step 4: Simplify right side
    10,920.54x = 57,802,147.97
  5. Step 5: Solve for x
    x = 57,802,147.97/10,920.54
  6. Step 6: Final answer
    x = 5,292.98

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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.