Home / 10,890.40-16,212.44-10,825.60

Finding the Fourth Proportional to 10,890.40, 16,212.44 and 10,825.60

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Solution

The fourth proportional to 10,890.40, 16,212.44 and 10,825.60 is: 16,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.40 : 16,212.44 = 10,825.60 : x
  2. Step 2: Convert to fraction form
    10,890.40/16,212.44 = 10,825.60/x
  3. Step 3: Cross multiply
    10,890.40x = 16,212.44 × 10,825.60
  4. Step 4: Simplify right side
    10,890.40x = 175,509,390.46
  5. Step 5: Solve for x
    x = 175,509,390.46/10,890.40
  6. Step 6: Final answer
    x = 16,115.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.