Home / 19,189.04-28,783.56-9,319.86

Finding the Fourth Proportional to 19,189.04, 28,783.56 and 9,319.86

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Solution

The fourth proportional to 19,189.04, 28,783.56 and 9,319.86 is: 13,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.04 : 28,783.56 = 9,319.86 : x
  2. Step 2: Convert to fraction form
    19,189.04/28,783.56 = 9,319.86/x
  3. Step 3: Cross multiply
    19,189.04x = 28,783.56 × 9,319.86
  4. Step 4: Simplify right side
    19,189.04x = 268,258,749.50
  5. Step 5: Solve for x
    x = 268,258,749.50/19,189.04
  6. Step 6: Final answer
    x = 13,979.79

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Similar ratio
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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.