Home / 10,383.62-15,577.47-3,809.87

Finding the Fourth Proportional to 10,383.62, 15,577.47 and 3,809.87

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Solution

The fourth proportional to 10,383.62, 15,577.47 and 3,809.87 is: 5,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.62 : 15,577.47 = 3,809.87 : x
  2. Step 2: Convert to fraction form
    10,383.62/15,577.47 = 3,809.87/x
  3. Step 3: Cross multiply
    10,383.62x = 15,577.47 × 3,809.87
  4. Step 4: Simplify right side
    10,383.62x = 59,348,057.74
  5. Step 5: Solve for x
    x = 59,348,057.74/10,383.62
  6. Step 6: Final answer
    x = 5,715.55

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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.