Home / 14,140.27-21,201.68-4,779.40

Finding the Fourth Proportional to 14,140.27, 21,201.68 and 4,779.40

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Solution

The fourth proportional to 14,140.27, 21,201.68 and 4,779.40 is: 7,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.27 : 21,201.68 = 4,779.40 : x
  2. Step 2: Convert to fraction form
    14,140.27/21,201.68 = 4,779.40/x
  3. Step 3: Cross multiply
    14,140.27x = 21,201.68 × 4,779.40
  4. Step 4: Simplify right side
    14,140.27x = 101,331,309.39
  5. Step 5: Solve for x
    x = 101,331,309.39/14,140.27
  6. Step 6: Final answer
    x = 7,166.15

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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.