Home / 10,378.81-15,568.27-2,587.62

Finding the Fourth Proportional to 10,378.81, 15,568.27 and 2,587.62

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Solution

The fourth proportional to 10,378.81, 15,568.27 and 2,587.62 is: 3,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.81 : 15,568.27 = 2,587.62 : x
  2. Step 2: Convert to fraction form
    10,378.81/15,568.27 = 2,587.62/x
  3. Step 3: Cross multiply
    10,378.81x = 15,568.27 × 2,587.62
  4. Step 4: Simplify right side
    10,378.81x = 40,284,766.82
  5. Step 5: Solve for x
    x = 40,284,766.82/10,378.81
  6. Step 6: Final answer
    x = 3,881.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.