Home / 9,391.92-14,065.40-5,221.56

Finding the Fourth Proportional to 9,391.92, 14,065.40 and 5,221.56

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Solution

The fourth proportional to 9,391.92, 14,065.40 and 5,221.56 is: 7,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.92 : 14,065.40 = 5,221.56 : x
  2. Step 2: Convert to fraction form
    9,391.92/14,065.40 = 5,221.56/x
  3. Step 3: Cross multiply
    9,391.92x = 14,065.40 × 5,221.56
  4. Step 4: Simplify right side
    9,391.92x = 73,443,330.02
  5. Step 5: Solve for x
    x = 73,443,330.02/9,391.92
  6. Step 6: Final answer
    x = 7,819.84

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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.