Home / 18,749.08-28,095.86-8,209.36

Finding the Fourth Proportional to 18,749.08, 28,095.86 and 8,209.36

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Solution

The fourth proportional to 18,749.08, 28,095.86 and 8,209.36 is: 12,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.08 : 28,095.86 = 8,209.36 : x
  2. Step 2: Convert to fraction form
    18,749.08/28,095.86 = 8,209.36/x
  3. Step 3: Cross multiply
    18,749.08x = 28,095.86 × 8,209.36
  4. Step 4: Simplify right side
    18,749.08x = 230,649,029.25
  5. Step 5: Solve for x
    x = 230,649,029.25/18,749.08
  6. Step 6: Final answer
    x = 12,301.89

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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.