Home / 15,200.35-20,966.23-13,207.48

Finding the Fourth Proportional to 15,200.35, 20,966.23 and 13,207.48

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Solution

The fourth proportional to 15,200.35, 20,966.23 and 13,207.48 is: 18,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,200.35 : 20,966.23 = 13,207.48 : x
  2. Step 2: Convert to fraction form
    15,200.35/20,966.23 = 13,207.48/x
  3. Step 3: Cross multiply
    15,200.35x = 20,966.23 × 13,207.48
  4. Step 4: Simplify right side
    15,200.35x = 276,911,063.40
  5. Step 5: Solve for x
    x = 276,911,063.40/15,200.35
  6. Step 6: Final answer
    x = 18,217.41

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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.