Home / 7,834.89-10,812.36-4,478.25

Finding the Fourth Proportional to 7,834.89, 10,812.36 and 4,478.25

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Solution

The fourth proportional to 7,834.89, 10,812.36 and 4,478.25 is: 6,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,834.89 : 10,812.36 = 4,478.25 : x
  2. Step 2: Convert to fraction form
    7,834.89/10,812.36 = 4,478.25/x
  3. Step 3: Cross multiply
    7,834.89x = 10,812.36 × 4,478.25
  4. Step 4: Simplify right side
    7,834.89x = 48,420,451.17
  5. Step 5: Solve for x
    x = 48,420,451.17/7,834.89
  6. Step 6: Final answer
    x = 6,180.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.