Home / 14,187.26-21,266.10-7,938.11

Finding the Fourth Proportional to 14,187.26, 21,266.10 and 7,938.11

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Solution

The fourth proportional to 14,187.26, 21,266.10 and 7,938.11 is: 11,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.26 : 21,266.10 = 7,938.11 : x
  2. Step 2: Convert to fraction form
    14,187.26/21,266.10 = 7,938.11/x
  3. Step 3: Cross multiply
    14,187.26x = 21,266.10 × 7,938.11
  4. Step 4: Simplify right side
    14,187.26x = 168,812,495.05
  5. Step 5: Solve for x
    x = 168,812,495.05/14,187.26
  6. Step 6: Final answer
    x = 11,898.88

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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.