Home / 14,288.60-21,394.51-11,645.30

Finding the Fourth Proportional to 14,288.60, 21,394.51 and 11,645.30

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Solution

The fourth proportional to 14,288.60, 21,394.51 and 11,645.30 is: 17,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.60 : 21,394.51 = 11,645.30 : x
  2. Step 2: Convert to fraction form
    14,288.60/21,394.51 = 11,645.30/x
  3. Step 3: Cross multiply
    14,288.60x = 21,394.51 × 11,645.30
  4. Step 4: Simplify right side
    14,288.60x = 249,145,511.68
  5. Step 5: Solve for x
    x = 249,145,511.68/14,288.60
  6. Step 6: Final answer
    x = 17,436.66

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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.