Home / 11,688.79-17,539.82-4,292.29

Finding the Fourth Proportional to 11,688.79, 17,539.82 and 4,292.29

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Solution

The fourth proportional to 11,688.79, 17,539.82 and 4,292.29 is: 6,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.79 : 17,539.82 = 4,292.29 : x
  2. Step 2: Convert to fraction form
    11,688.79/17,539.82 = 4,292.29/x
  3. Step 3: Cross multiply
    11,688.79x = 17,539.82 × 4,292.29
  4. Step 4: Simplify right side
    11,688.79x = 75,285,993.99
  5. Step 5: Solve for x
    x = 75,285,993.99/11,688.79
  6. Step 6: Final answer
    x = 6,440.87

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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.