Home / 10,386.43-15,575.79-4,144.57

Finding the Fourth Proportional to 10,386.43, 15,575.79 and 4,144.57

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Solution

The fourth proportional to 10,386.43, 15,575.79 and 4,144.57 is: 6,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.43 : 15,575.79 = 4,144.57 : x
  2. Step 2: Convert to fraction form
    10,386.43/15,575.79 = 4,144.57/x
  3. Step 3: Cross multiply
    10,386.43x = 15,575.79 × 4,144.57
  4. Step 4: Simplify right side
    10,386.43x = 64,554,928.56
  5. Step 5: Solve for x
    x = 64,554,928.56/10,386.43
  6. Step 6: Final answer
    x = 6,215.32

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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.