Home / 7,124.87-10,689.67-4,489.33

Finding the Fourth Proportional to 7,124.87, 10,689.67 and 4,489.33

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Solution

The fourth proportional to 7,124.87, 10,689.67 and 4,489.33 is: 6,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.87 : 10,689.67 = 4,489.33 : x
  2. Step 2: Convert to fraction form
    7,124.87/10,689.67 = 4,489.33/x
  3. Step 3: Cross multiply
    7,124.87x = 10,689.67 × 4,489.33
  4. Step 4: Simplify right side
    7,124.87x = 47,989,402.77
  5. Step 5: Solve for x
    x = 47,989,402.77/7,124.87
  6. Step 6: Final answer
    x = 6,735.48

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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.