Home / 10,143.26-15,215.57-4,217.85

Finding the Fourth Proportional to 10,143.26, 15,215.57 and 4,217.85

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Solution

The fourth proportional to 10,143.26, 15,215.57 and 4,217.85 is: 6,327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.26 : 15,215.57 = 4,217.85 : x
  2. Step 2: Convert to fraction form
    10,143.26/15,215.57 = 4,217.85/x
  3. Step 3: Cross multiply
    10,143.26x = 15,215.57 × 4,217.85
  4. Step 4: Simplify right side
    10,143.26x = 64,176,970.84
  5. Step 5: Solve for x
    x = 64,176,970.84/10,143.26
  6. Step 6: Final answer
    x = 6,327.06

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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.