Home / 13,749.08-20,609.54-5,425.74

Finding the Fourth Proportional to 13,749.08, 20,609.54 and 5,425.74

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Solution

The fourth proportional to 13,749.08, 20,609.54 and 5,425.74 is: 8,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.08 : 20,609.54 = 5,425.74 : x
  2. Step 2: Convert to fraction form
    13,749.08/20,609.54 = 5,425.74/x
  3. Step 3: Cross multiply
    13,749.08x = 20,609.54 × 5,425.74
  4. Step 4: Simplify right side
    13,749.08x = 111,822,005.56
  5. Step 5: Solve for x
    x = 111,822,005.56/13,749.08
  6. Step 6: Final answer
    x = 8,133.05

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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.