Home / 12,448.53-18,668.93-4,126.68

Finding the Fourth Proportional to 12,448.53, 18,668.93 and 4,126.68

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Solution

The fourth proportional to 12,448.53, 18,668.93 and 4,126.68 is: 6,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.53 : 18,668.93 = 4,126.68 : x
  2. Step 2: Convert to fraction form
    12,448.53/18,668.93 = 4,126.68/x
  3. Step 3: Cross multiply
    12,448.53x = 18,668.93 × 4,126.68
  4. Step 4: Simplify right side
    12,448.53x = 77,040,679.42
  5. Step 5: Solve for x
    x = 77,040,679.42/12,448.53
  6. Step 6: Final answer
    x = 6,188.74

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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.