Home / 10,381.96-15,569.22-3,806.68

Finding the Fourth Proportional to 10,381.96, 15,569.22 and 3,806.68

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Solution

The fourth proportional to 10,381.96, 15,569.22 and 3,806.68 is: 5,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.96 : 15,569.22 = 3,806.68 : x
  2. Step 2: Convert to fraction form
    10,381.96/15,569.22 = 3,806.68/x
  3. Step 3: Cross multiply
    10,381.96x = 15,569.22 × 3,806.68
  4. Step 4: Simplify right side
    10,381.96x = 59,267,038.39
  5. Step 5: Solve for x
    x = 59,267,038.39/10,381.96
  6. Step 6: Final answer
    x = 5,708.66

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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.