Home / 19,270.56-28,909.20-6,789.60

Finding the Fourth Proportional to 19,270.56, 28,909.20 and 6,789.60

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Solution

The fourth proportional to 19,270.56, 28,909.20 and 6,789.60 is: 10,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.56 : 28,909.20 = 6,789.60 : x
  2. Step 2: Convert to fraction form
    19,270.56/28,909.20 = 6,789.60/x
  3. Step 3: Cross multiply
    19,270.56x = 28,909.20 × 6,789.60
  4. Step 4: Simplify right side
    19,270.56x = 196,281,904.32
  5. Step 5: Solve for x
    x = 196,281,904.32/19,270.56
  6. Step 6: Final answer
    x = 10,185.58

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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.