Home / 11,627.20-17,440.80-3,306.40

Finding the Fourth Proportional to 11,627.20, 17,440.80 and 3,306.40

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Solution

The fourth proportional to 11,627.20, 17,440.80 and 3,306.40 is: 4,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,627.20 : 17,440.80 = 3,306.40 : x
  2. Step 2: Convert to fraction form
    11,627.20/17,440.80 = 3,306.40/x
  3. Step 3: Cross multiply
    11,627.20x = 17,440.80 × 3,306.40
  4. Step 4: Simplify right side
    11,627.20x = 57,666,261.12
  5. Step 5: Solve for x
    x = 57,666,261.12/11,627.20
  6. Step 6: Final answer
    x = 4,959.60

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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.