Home / 10,140.24-15,212.70-4,297.08

Finding the Fourth Proportional to 10,140.24, 15,212.70 and 4,297.08

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Solution

The fourth proportional to 10,140.24, 15,212.70 and 4,297.08 is: 6,446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.24 : 15,212.70 = 4,297.08 : x
  2. Step 2: Convert to fraction form
    10,140.24/15,212.70 = 4,297.08/x
  3. Step 3: Cross multiply
    10,140.24x = 15,212.70 × 4,297.08
  4. Step 4: Simplify right side
    10,140.24x = 65,370,188.92
  5. Step 5: Solve for x
    x = 65,370,188.92/10,140.24
  6. Step 6: Final answer
    x = 6,446.61

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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.