Home / 14,378.38-21,583.98-9,638.07

Finding the Fourth Proportional to 14,378.38, 21,583.98 and 9,638.07

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Solution

The fourth proportional to 14,378.38, 21,583.98 and 9,638.07 is: 14,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.38 : 21,583.98 = 9,638.07 : x
  2. Step 2: Convert to fraction form
    14,378.38/21,583.98 = 9,638.07/x
  3. Step 3: Cross multiply
    14,378.38x = 21,583.98 × 9,638.07
  4. Step 4: Simplify right side
    14,378.38x = 208,027,910.12
  5. Step 5: Solve for x
    x = 208,027,910.12/14,378.38
  6. Step 6: Final answer
    x = 14,468.10

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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.