Home / 10,419.29-15,623.62-3,394.79

Finding the Fourth Proportional to 10,419.29, 15,623.62 and 3,394.79

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Solution

The fourth proportional to 10,419.29, 15,623.62 and 3,394.79 is: 5,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.29 : 15,623.62 = 3,394.79 : x
  2. Step 2: Convert to fraction form
    10,419.29/15,623.62 = 3,394.79/x
  3. Step 3: Cross multiply
    10,419.29x = 15,623.62 × 3,394.79
  4. Step 4: Simplify right side
    10,419.29x = 53,038,908.94
  5. Step 5: Solve for x
    x = 53,038,908.94/10,419.29
  6. Step 6: Final answer
    x = 5,090.45

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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.