Home / 10,921.70-16,383.61-4,346.35

Finding the Fourth Proportional to 10,921.70, 16,383.61 and 4,346.35

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Solution

The fourth proportional to 10,921.70, 16,383.61 and 4,346.35 is: 6,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.70 : 16,383.61 = 4,346.35 : x
  2. Step 2: Convert to fraction form
    10,921.70/16,383.61 = 4,346.35/x
  3. Step 3: Cross multiply
    10,921.70x = 16,383.61 × 4,346.35
  4. Step 4: Simplify right side
    10,921.70x = 71,208,867.80
  5. Step 5: Solve for x
    x = 71,208,867.80/10,921.70
  6. Step 6: Final answer
    x = 6,519.94

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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.