Home / 15,204.45-20,982.47-9,539.42

Finding the Fourth Proportional to 15,204.45, 20,982.47 and 9,539.42

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Solution

The fourth proportional to 15,204.45, 20,982.47 and 9,539.42 is: 13,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.45 : 20,982.47 = 9,539.42 : x
  2. Step 2: Convert to fraction form
    15,204.45/20,982.47 = 9,539.42/x
  3. Step 3: Cross multiply
    15,204.45x = 20,982.47 × 9,539.42
  4. Step 4: Simplify right side
    15,204.45x = 200,160,441.36
  5. Step 5: Solve for x
    x = 200,160,441.36/15,204.45
  6. Step 6: Final answer
    x = 13,164.60

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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.