Home / 10,143.90-15,217.07-4,299.75

Finding the Fourth Proportional to 10,143.90, 15,217.07 and 4,299.75

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Solution

The fourth proportional to 10,143.90, 15,217.07 and 4,299.75 is: 6,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.90 : 15,217.07 = 4,299.75 : x
  2. Step 2: Convert to fraction form
    10,143.90/15,217.07 = 4,299.75/x
  3. Step 3: Cross multiply
    10,143.90x = 15,217.07 × 4,299.75
  4. Step 4: Simplify right side
    10,143.90x = 65,429,575.23
  5. Step 5: Solve for x
    x = 65,429,575.23/10,143.90
  6. Step 6: Final answer
    x = 6,450.14

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1.5x scale

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.