Home / 14,003.97-21,009.60-5,239.57

Finding the Fourth Proportional to 14,003.97, 21,009.60 and 5,239.57

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Solution

The fourth proportional to 14,003.97, 21,009.60 and 5,239.57 is: 7,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.97 : 21,009.60 = 5,239.57 : x
  2. Step 2: Convert to fraction form
    14,003.97/21,009.60 = 5,239.57/x
  3. Step 3: Cross multiply
    14,003.97x = 21,009.60 × 5,239.57
  4. Step 4: Simplify right side
    14,003.97x = 110,081,217.35
  5. Step 5: Solve for x
    x = 110,081,217.35/14,003.97
  6. Step 6: Final answer
    x = 7,860.72

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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.