Home / 13,324.80-19,987.20-9,177.60

Finding the Fourth Proportional to 13,324.80, 19,987.20 and 9,177.60

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Solution

The fourth proportional to 13,324.80, 19,987.20 and 9,177.60 is: 13,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.80 : 19,987.20 = 9,177.60 : x
  2. Step 2: Convert to fraction form
    13,324.80/19,987.20 = 9,177.60/x
  3. Step 3: Cross multiply
    13,324.80x = 19,987.20 × 9,177.60
  4. Step 4: Simplify right side
    13,324.80x = 183,434,526.72
  5. Step 5: Solve for x
    x = 183,434,526.72/13,324.80
  6. Step 6: Final answer
    x = 13,766.40

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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.