Home / 14,217.06-19,619.60-7,843.86

Finding the Fourth Proportional to 14,217.06, 19,619.60 and 7,843.86

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Solution

The fourth proportional to 14,217.06, 19,619.60 and 7,843.86 is: 10,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.06 : 19,619.60 = 7,843.86 : x
  2. Step 2: Convert to fraction form
    14,217.06/19,619.60 = 7,843.86/x
  3. Step 3: Cross multiply
    14,217.06x = 19,619.60 × 7,843.86
  4. Step 4: Simplify right side
    14,217.06x = 153,893,395.66
  5. Step 5: Solve for x
    x = 153,893,395.66/14,217.06
  6. Step 6: Final answer
    x = 10,824.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.