Home / 21,194.16-29,250.84-12,813.36

Finding the Fourth Proportional to 21,194.16, 29,250.84 and 12,813.36

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Solution

The fourth proportional to 21,194.16, 29,250.84 and 12,813.36 is: 17,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.16 : 29,250.84 = 12,813.36 : x
  2. Step 2: Convert to fraction form
    21,194.16/29,250.84 = 12,813.36/x
  3. Step 3: Cross multiply
    21,194.16x = 29,250.84 × 12,813.36
  4. Step 4: Simplify right side
    21,194.16x = 374,801,543.22
  5. Step 5: Solve for x
    x = 374,801,543.22/21,194.16
  6. Step 6: Final answer
    x = 17,684.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.