Home / 11,688.35-17,539.55-4,191.33

Finding the Fourth Proportional to 11,688.35, 17,539.55 and 4,191.33

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Solution

The fourth proportional to 11,688.35, 17,539.55 and 4,191.33 is: 6,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.35 : 17,539.55 = 4,191.33 : x
  2. Step 2: Convert to fraction form
    11,688.35/17,539.55 = 4,191.33/x
  3. Step 3: Cross multiply
    11,688.35x = 17,539.55 × 4,191.33
  4. Step 4: Simplify right side
    11,688.35x = 73,514,042.10
  5. Step 5: Solve for x
    x = 73,514,042.10/11,688.35
  6. Step 6: Final answer
    x = 6,289.51

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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.