Home / 14,004.90-21,006.60-5,239.08

Finding the Fourth Proportional to 14,004.90, 21,006.60 and 5,239.08

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Solution

The fourth proportional to 14,004.90, 21,006.60 and 5,239.08 is: 7,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.90 : 21,006.60 = 5,239.08 : x
  2. Step 2: Convert to fraction form
    14,004.90/21,006.60 = 5,239.08/x
  3. Step 3: Cross multiply
    14,004.90x = 21,006.60 × 5,239.08
  4. Step 4: Simplify right side
    14,004.90x = 110,055,257.93
  5. Step 5: Solve for x
    x = 110,055,257.93/14,004.90
  6. Step 6: Final answer
    x = 7,858.34

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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.