Home / 10,645.25-15,975.21-3,719.75

Finding the Fourth Proportional to 10,645.25, 15,975.21 and 3,719.75

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Solution

The fourth proportional to 10,645.25, 15,975.21 and 3,719.75 is: 5,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.25 : 15,975.21 = 3,719.75 : x
  2. Step 2: Convert to fraction form
    10,645.25/15,975.21 = 3,719.75/x
  3. Step 3: Cross multiply
    10,645.25x = 15,975.21 × 3,719.75
  4. Step 4: Simplify right side
    10,645.25x = 59,423,787.40
  5. Step 5: Solve for x
    x = 59,423,787.40/10,645.25
  6. Step 6: Final answer
    x = 5,582.19

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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.