Home / 15,193.39-20,956.53-13,200.43

Finding the Fourth Proportional to 15,193.39, 20,956.53 and 13,200.43

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Solution

The fourth proportional to 15,193.39, 20,956.53 and 13,200.43 is: 18,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.39 : 20,956.53 = 13,200.43 : x
  2. Step 2: Convert to fraction form
    15,193.39/20,956.53 = 13,200.43/x
  3. Step 3: Cross multiply
    15,193.39x = 20,956.53 × 13,200.43
  4. Step 4: Simplify right side
    15,193.39x = 276,635,207.31
  5. Step 5: Solve for x
    x = 276,635,207.31/15,193.39
  6. Step 6: Final answer
    x = 18,207.60

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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.