Home / 13,704.40-20,556.60-9,330.40

Finding the Fourth Proportional to 13,704.40, 20,556.60 and 9,330.40

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Solution

The fourth proportional to 13,704.40, 20,556.60 and 9,330.40 is: 13,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.40 : 20,556.60 = 9,330.40 : x
  2. Step 2: Convert to fraction form
    13,704.40/20,556.60 = 9,330.40/x
  3. Step 3: Cross multiply
    13,704.40x = 20,556.60 × 9,330.40
  4. Step 4: Simplify right side
    13,704.40x = 191,801,300.64
  5. Step 5: Solve for x
    x = 191,801,300.64/13,704.40
  6. Step 6: Final answer
    x = 13,995.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.