Home / 14,224.82-21,420.65-12,397.25

Finding the Fourth Proportional to 14,224.82, 21,420.65 and 12,397.25

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Solution

The fourth proportional to 14,224.82, 21,420.65 and 12,397.25 is: 18,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,224.82 : 21,420.65 = 12,397.25 : x
  2. Step 2: Convert to fraction form
    14,224.82/21,420.65 = 12,397.25/x
  3. Step 3: Cross multiply
    14,224.82x = 21,420.65 × 12,397.25
  4. Step 4: Simplify right side
    14,224.82x = 265,557,237.76
  5. Step 5: Solve for x
    x = 265,557,237.76/14,224.82
  6. Step 6: Final answer
    x = 18,668.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.