Home / 15,346.49-21,086.37-12,197.21

Finding the Fourth Proportional to 15,346.49, 21,086.37 and 12,197.21

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Solution

The fourth proportional to 15,346.49, 21,086.37 and 12,197.21 is: 16,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.49 : 21,086.37 = 12,197.21 : x
  2. Step 2: Convert to fraction form
    15,346.49/21,086.37 = 12,197.21/x
  3. Step 3: Cross multiply
    15,346.49x = 21,086.37 × 12,197.21
  4. Step 4: Simplify right side
    15,346.49x = 257,194,883.03
  5. Step 5: Solve for x
    x = 257,194,883.03/15,346.49
  6. Step 6: Final answer
    x = 16,759.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.