Home / 8,281.96-12,428.70-5,353

Finding the Fourth Proportional to 8,281.96, 12,428.70 and 5,353

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Solution

The fourth proportional to 8,281.96, 12,428.70 and 5,353 is: 8,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.96 : 12,428.70 = 5,353 : x
  2. Step 2: Convert to fraction form
    8,281.96/12,428.70 = 5,353/x
  3. Step 3: Cross multiply
    8,281.96x = 12,428.70 × 5,353
  4. Step 4: Simplify right side
    8,281.96x = 66,530,831.10
  5. Step 5: Solve for x
    x = 66,530,831.10/8,281.96
  6. Step 6: Final answer
    x = 8,033.22

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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.