Home / 14,308.31-19,746.69-8,021.90

Finding the Fourth Proportional to 14,308.31, 19,746.69 and 8,021.90

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Solution

The fourth proportional to 14,308.31, 19,746.69 and 8,021.90 is: 11,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.31 : 19,746.69 = 8,021.90 : x
  2. Step 2: Convert to fraction form
    14,308.31/19,746.69 = 8,021.90/x
  3. Step 3: Cross multiply
    14,308.31x = 19,746.69 × 8,021.90
  4. Step 4: Simplify right side
    14,308.31x = 158,405,991.80
  5. Step 5: Solve for x
    x = 158,405,991.80/14,308.31
  6. Step 6: Final answer
    x = 11,070.91

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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.