Home / 14,459.31-21,683.50-7,881.91

Finding the Fourth Proportional to 14,459.31, 21,683.50 and 7,881.91

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Solution

The fourth proportional to 14,459.31, 21,683.50 and 7,881.91 is: 11,819.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.31 : 21,683.50 = 7,881.91 : x
  2. Step 2: Convert to fraction form
    14,459.31/21,683.50 = 7,881.91/x
  3. Step 3: Cross multiply
    14,459.31x = 21,683.50 × 7,881.91
  4. Step 4: Simplify right side
    14,459.31x = 170,907,321.57
  5. Step 5: Solve for x
    x = 170,907,321.57/14,459.31
  6. Step 6: Final answer
    x = 11,819.88

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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.