Home / 15,473.36-21,353.34-8,399.81

Finding the Fourth Proportional to 15,473.36, 21,353.34 and 8,399.81

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Solution

The fourth proportional to 15,473.36, 21,353.34 and 8,399.81 is: 11,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.36 : 21,353.34 = 8,399.81 : x
  2. Step 2: Convert to fraction form
    15,473.36/21,353.34 = 8,399.81/x
  3. Step 3: Cross multiply
    15,473.36x = 21,353.34 × 8,399.81
  4. Step 4: Simplify right side
    15,473.36x = 179,363,998.87
  5. Step 5: Solve for x
    x = 179,363,998.87/15,473.36
  6. Step 6: Final answer
    x = 11,591.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.