Home / 9,871.28-14,812.75-3,635.67

Finding the Fourth Proportional to 9,871.28, 14,812.75 and 3,635.67

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Solution

The fourth proportional to 9,871.28, 14,812.75 and 3,635.67 is: 5,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.28 : 14,812.75 = 3,635.67 : x
  2. Step 2: Convert to fraction form
    9,871.28/14,812.75 = 3,635.67/x
  3. Step 3: Cross multiply
    9,871.28x = 14,812.75 × 3,635.67
  4. Step 4: Simplify right side
    9,871.28x = 53,854,270.79
  5. Step 5: Solve for x
    x = 53,854,270.79/9,871.28
  6. Step 6: Final answer
    x = 5,455.65

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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.